With issue for a few years, I have been using a Jabra 65 Evolve headset with Microsoft Teams on the same Windows 10 Laptop. In the last few weeks, I have had problems where after exiting a Teams meeting, the Teams software is not fully hanging up. Upon exiting via the the "Leave" button in the Teams Window or Hanging up with a long-press of the Jabra Headset button, the meeting and the meeting window will close and appear to have fully ended, but my headset is still "connected" appearing to be part of a meeting. While in this connected state, the headset will not connect to another Bluetooth device (like my mobile phone). It will stay in this state indefinitely and will only respond/connect if I enter another Teams meeting.
The only fix I have found is when I fully exit Teams. Once I do that, the headset is fully released/hung up and connects back to my Mobile phone. Only after exiting Teams and then reloading Teams does the headset work properly and pair back up with the headset while also being paired with my mobile phone.
I believe this is a Teams problem only because anything I try with the Jabra headset or software does not change the state of the headset. The headset still appears connected even if I unplug the Jabra Link 370 dongle and then plug it back in. Again, only after I fully exit/shutdown Teams and then restart Teams is the headset for use like it had been for the years before. My ticket to Jabra states this is a Microsoft Teams problem (of course).
Laptop LENOVO ThinkPad T15 Gen 1
Windows Version 10.0.19044 Build 19044
Microsoft Teams Version 1.6.00.1381 (64-bit)
Jabra Evolve Headset Firmware 2.97.0
Jabra Link 370 Firmware 1.87.0
Jabra Direct Software 6.5.31801