Spotify Connect doesn't work correctly

hey,

i have an issue. I’m trying to setup roopieee with a USB DAC Fiio K3. I want to use spotify connect and airplay with the roopieee. It was working on my mac and iphone yesterday but not on my girlfriends phone. The device didn’t show up. Today it’s the opposite, she can see it, but I don’t.

Tried several reboots, also plugged it out/in again.

Why does it have such a weird behavior?

P.S. And right now I can’t find it on both of the devices…

logs: 7b0664b50f3e633b