Why does roon stop playing after every track???

Roon Core Machine

Mac Mini Server 2012, MacOS 10.15.7, i7, 10GB RAM

Networking Gear & Setup Details


Connected Audio Devices

Marantz NR1608

Number of Tracks in Library


Description of Issue

roon stops playing music after every track in roon radio or random play! skipping tracks sometimes takes 10-20s until something happens (or not)

I have had this off late in ARC.