HR connection lost after Workout paused

Newbie alert. I’ve noticed that if I pause a Workout then when I resume the session my HR no longer appears in Zwift. I’m using Zwift on Android (Samsung S10) with a Garmin Forerunner 235. Otherwise all works fine apart from Zwift starting upside down sometimes.

Would be nice to have easier access to my data in the app rather than the assumption that I am wanting to start a session or watch. Or am I missing something?

Go into menu, click bluetooth symbol and it takes you back to the connections page.