Early Access is NOT 2.60, or shouldn’t be, I suppose:
The 2.60 version is in Production:
You are running a mix of EA and Production and you should not.
It’s possible that Roon somehow messed this up and the 2.60 was pushed through Android Play Store anyway, even if you’re in the Android Beta update channel for Early Access, and although it’s incompatible with the Early Access Server version. I don’t know. EDIT: Yeah seems like this is the case, see the next post below 
It’s also possible you didn’t join your Android version to Beta in the Play Store (which are the EA versions) but are installing the Android production versions. Probably best to verify this:
Updating Android apps to earlyaccess
Access to Roon’s Early Access releases on Android is via the Play Store’s public beta program. You can join Roon’s public beta by following these steps:
Important: To get the beta version of an app, the app must already be installed on your device.
Open the Play Store.
At the top right, tap the profile icon.
Tap Manage apps & devices → Installed.
Tap the Roon app to open its detail page.
Under “Join the beta,” tap Join → Join.
Repeat steps 4 and 5 for the Roon ARC app if installed on your device
If you prefer you may also download and install the earlyaccess apk package from the link below.
See: