App shut down

[1] Yesterday, as has happened once or twice before, 1 1.4 hour into a workout, the Zwift app shut down completely. I already make sure my desktop is running nothing but the app, what gives?

[2] Also, sometimes the app doesn’t take any input/output from my smart trainer (Tackx). I’ve installed a bluetooth enhancer (TAckx is 6m, no wall from pc), it drops out less but not 100% resolved.

Same drop out probs. Problems loging in too. Login every time,no game option,doesn’t except previous passwords, Making new ones every morning. Seriously it’s something different every day,building on the days before. Either zwift or the app