Same problem here, with the Atem TVS HD. Settings are lost after reboot.
To test, I downgraded to v7.5.2. Then I tried to set input labels, and then reboot switcher. That is working normal. Uploading stills to media storage also working normal (stills are remembered after reboot).
Then I updated to v8.2.1 (but the problem started a few versions ago, i don't know which exact one).
After updating, the labels en media pool are te same, as it was before updating.
But, when I edit a input label, and then reboot switcher, that input label gets reset to (for example): "Camera 1" and "CAM1". Only the editted labels gets reset to this default values on reboot. If I click "Reset" at the labels, and type new labels and save. Then all labels are reset after reboot switcher.
New uploads to media pool are also not remembered. Only uploads from before update, are still there. The new uploads are gone after reboot.
Someone at BM accidentally changed filesystem of TVS HD to read-only? Or something like that?
I hope it can be fixed... Very frustrating to set labels on every start.