I installed GOS on a brand new Pixel 6A and paired my Samsung Galaxy Watch 5 Pro. Sandboxed Google Play is installed and all applications have the correct permissions for body sensors and communication. Here is the progression of my watch issues:
1) At initial setup watch received notifications from phone and Samsung Health received info from watch
2) After an GOS update, watch received notifications from phone but did not send any data to phone
3) About two weeks ago, after a GOS update, the watch suddenly started sending data to the phone again
4) Roughly two days ago, after another GOS update, the watched stopped sending data to the phone again
Can the GOS team please fix whatever is preventing my watch from sending data to my phone? It worked for a while...