Started getting this error this morning:  App Center    App Installation    [App Center] Emby Server has an invalid digital signature. The app has stopped and cannot be installed on QTS. You can remove it in the App Center. This was after the latest firmware update: 5.0.0.1932 I'm running a TVS-871U-RP.   Ok, never mind, I found this setting in the App Center -> Settings:  Apparently I had to toggle this after the FW upgrade...