not sure if it helps, but see below crestron debug log.
Log reflects me being stuck in the playlist menu, having pressed back a few times, but unable to get to any other menu.
0 ms: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] Back()
0 ms: [Console Data] : [trace] SelectItem start!
0 ms: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] select item , input text: , pop all: False, pop levels: 1, service == null: False
0 ms: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setbusy 1
0 ms: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setbusy 2
0 ms: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] Loading item
0 ms: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] SelectItem, Instance: 1, output id: 16012cd2038a5652d4f3b37453369ec00e49
0 ms: [Console Data] : [trace] moo connection, request
0 ms: [Console Data] : [trace] moo connection, send
0 ms: [Console Data] : [trace] moo connection, spin write queue, disconnected? False, pending? False, count: 1
0 ms: [Console Data] : [trace] moo connection, write pending
0 ms: [Console Data] : [trace] client socket, send data async
0 ms: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] Back()
0 ms: [Console Data] : [trace] SelectItem start!
0 ms: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] select item , input text: , pop all: False, pop levels: 1, service == null: False
0 ms: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setbusy 1
0 ms: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setbusy 2
0 ms: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] Loading item
0 ms: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] SelectItem, Instance: 1, output id: 16012cd2038a5652d4f3b37453369ec00e49
15 ms: [Console Data] : [trace] moo connection, request
15 ms: [Console Data] : [trace] moo connection, send
15 ms: [Console Data] : [trace] moo connection, spin write queue, disconnected? False, pending? True, count: 1
15 ms: [Console Data] : [trace] client socket, send data callback
15 ms: [Console Data] : [trace] moo connection, send message, result success: True
15 ms: [Console Data] : [trace] moo connection, spin write queue, disconnected? False, pending? False, count: 1
15 ms: [Console Data] : [trace] moo connection, write pending
15 ms: [Console Data] : [trace] client socket, send data async
15 ms: [Console Data] : [trace] client socket, send data callback
15 ms: [Console Data] : [trace] moo connection, send message, result success: True
15 ms: [Console Data] : [trace] moo connection, spin write queue, disconnected? False, pending? False, count: 0
453 ms: [Console Data] : [trace] client socket, receive data callback
453 ms: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] SelectItem, browseresult, isfailure: True
453 ms: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setnotbusy 1
453 ms: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setnotbusy 2
453 ms: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] SelectItem, browseresult, isfailure: True
453 ms: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setnotbusy 1
453 ms: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setnotbusy 2
453 ms: [Console Data] : [trace] client socket, receive data async
00:00:04.640: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] Back()
00:00:04.640: [Console Data] : [trace] SelectItem start!
00:00:04.640: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] select item , input text: , pop all: False, pop levels: 1, service == null: False
00:00:04.640: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setbusy 1
00:00:04.640: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setbusy 2
00:00:04.640: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] Loading item
00:00:04.640: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] SelectItem, Instance: 1, output id: 16012cd2038a5652d4f3b37453369ec00e49
00:00:04.640: [Console Data] : [trace] moo connection, request
00:00:04.640: [Console Data] : [trace] moo connection, send
00:00:04.640: [Console Data] : [trace] moo connection, spin write queue, disconnected? False, pending? False, count: 1
00:00:04.640: [Console Data] : [trace] moo connection, write pending
00:00:04.640: [Console Data] : [trace] client socket, send data async
00:00:04.640: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] Back()
00:00:04.640: [Console Data] : [trace] SelectItem start!
00:00:04.640: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] select item , input text: , pop all: False, pop levels: 1, service == null: False
00:00:04.640: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setbusy 1
00:00:04.640: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setbusy 2
00:00:04.640: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] Loading item
00:00:04.640: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] SelectItem, Instance: 1, output id: 16012cd2038a5652d4f3b37453369ec00e49
00:00:04.640: [Console Data] : [trace] moo connection, request
00:00:04.640: [Console Data] : [trace] moo connection, send
00:00:04.640: [Console Data] : [trace] moo connection, spin write queue, disconnected? False, pending? True, count: 1
00:00:04.640: [Console Data] : [trace] client socket, send data callback
00:00:04.640: [Console Data] : [trace] moo connection, send message, result success: True
00:00:04.656: [Console Data] : [trace] moo connection, spin write queue, disconnected? False, pending? False, count: 1
00:00:04.656: [Console Data] : [trace] moo connection, write pending
00:00:04.656: [Console Data] : [trace] client socket, send data async
00:00:04.656: [Console Data] : [trace] client socket, send data callback
00:00:04.656: [Console Data] : [trace] moo connection, send message, result success: True
00:00:04.656: [Console Data] : [trace] moo connection, spin write queue, disconnected? False, pending? False, count: 0
00:00:05.078: [Console Data] : [trace] client socket, receive data callback
00:00:05.078: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] SelectItem, browseresult, isfailure: True
00:00:05.078: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setnotbusy 1
00:00:05.078: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setnotbusy 2
00:00:05.078: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] SelectItem, browseresult, isfailure: True
00:00:05.078: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setnotbusy 1
00:00:05.078: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setnotbusy 2
00:00:05.078: [Console Data] : [trace] client socket, receive data async
00:00:08.343: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] Back()
00:00:08.343: [Console Data] : [trace] SelectItem start!
00:00:08.343: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] select item , input text: , pop all: False, pop levels: 1, service == null: False
00:00:08.343: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setbusy 1
00:00:08.343: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setbusy 2
00:00:08.343: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] Loading item
00:00:08.343: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] SelectItem, Instance: 1, output id: 16012cd2038a5652d4f3b37453369ec00e49
00:00:08.343: [Console Data] : [trace] moo connection, request
00:00:08.343: [Console Data] : [trace] moo connection, send
00:00:08.343: [Console Data] : [trace] moo connection, spin write queue, disconnected? False, pending? False, count: 1
00:00:08.343: [Console Data] : [trace] moo connection, write pending
00:00:08.343: [Console Data] : [trace] client socket, send data async
00:00:08.343: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] Back()
00:00:08.343: [Console Data] : [trace] SelectItem start!
00:00:08.343: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] select item , input text: , pop all: False, pop levels: 1, service == null: False
00:00:08.343: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setbusy 1
00:00:08.343: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setbusy 2
00:00:08.359: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] Loading item
00:00:08.359: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] SelectItem, Instance: 1, output id: 16012cd2038a5652d4f3b37453369ec00e49
00:00:08.359: [Console Data] : [trace] moo connection, request
00:00:08.359: [Console Data] : [trace] moo connection, send
00:00:08.359: [Console Data] : [trace] moo connection, spin write queue, disconnected? False, pending? True, count: 1
00:00:08.359: [Console Data] : [trace] client socket, send data callback
00:00:08.359: [Console Data] : [trace] moo connection, send message, result success: True
00:00:08.359: [Console Data] : [trace] moo connection, spin write queue, disconnected? False, pending? False, count: 1
00:00:08.359: [Console Data] : [trace] moo connection, write pending
00:00:08.359: [Console Data] : [trace] client socket, send data async
00:00:08.359: [Console Data] : [trace] client socket, send data callback
00:00:08.359: [Console Data] : [trace] moo connection, send message, result success: True
00:00:08.359: [Console Data] : [trace] moo connection, spin write queue, disconnected? False, pending? False, count: 0
00:00:08.750: [Console Data] : [trace] client socket, receive data callback
00:00:08.750: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] SelectItem, browseresult, isfailure: True
00:00:08.750: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setnotbusy 1
00:00:08.781: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setnotbusy 2
00:00:08.781: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] SelectItem, browseresult, isfailure: True
00:00:08.781: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setnotbusy 1
00:00:08.781: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setnotbusy 2
00:00:08.781: [Console Data] : [trace] client socket, receive data async
00:00:10.656: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] Back()
00:00:10.656: [Console Data] : [trace] SelectItem start!
00:00:10.656: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] select item , input text: , pop all: False, pop levels: 1, service == null: False
00:00:10.656: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setbusy 1
00:00:10.656: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setbusy 2
00:00:10.656: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] Loading item
00:00:10.656: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] SelectItem, Instance: 1, output id: 16012cd2038a5652d4f3b37453369ec00e49
00:00:10.656: [Console Data] : [trace] moo connection, request
00:00:10.656: [Console Data] : [trace] moo connection, send
00:00:10.656: [Console Data] : [trace] moo connection, spin write queue, disconnected? False, pending? False, count: 1
00:00:10.656: [Console Data] : [trace] moo connection, write pending
00:00:10.656: [Console Data] : [trace] client socket, send data async
00:00:10.656: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] Back()
00:00:10.656: [Console Data] : [trace] SelectItem start!
00:00:10.656: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] select item , input text: , pop all: False, pop levels: 1, service == null: False
00:00:10.656: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setbusy 1
00:00:10.656: [Console Data] : [trace] client socket, send data callback
00:00:10.656: [Console Data] : [trace] moo connection, send message, result success: True
00:00:10.656: [Console Data] : [trace] moo connection, spin write queue, disconnected? False, pending? False, count: 0
00:00:10.734: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setbusy 2
00:00:10.734: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] Loading item
00:00:10.734: [Console Data] : [trace] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] SelectItem, Instance: 1, output id: 16012cd2038a5652d4f3b37453369ec00e49
00:00:10.734: [Console Data] : [trace] moo connection, request
00:00:10.734: [Console Data] : [trace] moo connection, send
00:00:10.734: [Console Data] : [trace] moo connection, spin write queue, disconnected? False, pending? False, count: 1
00:00:10.734: [Console Data] : [trace] moo connection, write pending
00:00:10.734: [Console Data] : [trace] client socket, send data async
00:00:10.734: [Console Data] : [trace] client socket, send data callback
00:00:10.734: [Console Data] : [trace] moo connection, send message, result success: True
00:00:10.734: [Console Data] : [trace] moo connection, spin write queue, disconnected? False, pending? False, count: 0
00:00:10.734: [Console Data] : [trace] client socket, receive data callback
00:00:10.734: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] SelectItem, browseresult, isfailure: True
00:00:10.734: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setnotbusy 1
00:00:10.734: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setnotbusy 2
00:00:10.734: [Console Data] : [trace] client socket, receive data async
00:00:11.047: [Console Data] : [trace] client socket, receive data callback
00:00:11.078: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] SelectItem, browseresult, isfailure: True
00:00:11.172: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setnotbusy 1
00:00:11.172: [Console Data] : [debug] [crestron/menu] [B48E984D-7DE2-8BE2-B4FD-0094878E12C6] setnotbusy 2
00:00:11.172: [Console Data] : [trace] client socket, receive data async