Tv brief loss of signal when loading kodi since being on 17

I’ve got several fire devices and a nvidia shield tv running Kodi. My gen 1 fire tv box will lose tv signal for about 3 seconds when opening kodi or when returning to the amazon tv home screen. It’s not my tv, as I’ve tried it on other tv’s in the home. I’ve already factory reset it and upgraded kodi to 17.3. It began doing this from kodi 17.0 and later. Prior to that, no problems, and I even put kodi 16 back on briefly to see and it again did NOT have the problem on kodi 16.

Any suggestions?