Connecting to phone on start, can't choose other Device

[ilivetruth]

Ticwatch Pro 5.

When I open the app, I click the arrow then it shows my Bluetooth devices.

My desktop shows and my phone shows under it, but it auto attempts to connect to my phone and the option is greyed out. After a while, it becomes selectable but still appears to perpetually connect (even when it is connected to my phone). Clicking disconnect/cancel does not stop it from connecting to my phone.

I did successfully boot the app and connect to my phone once, and I was able to use the watch as a mouse for my phone.

But only that one time, I've never successfully connected to my desktop.

The behavior is the same when I start the app with the Bluetooth enabled on my phone or not.

How can I debug this?