Error - Clip failed to load

Over the past week, I found several clips from different camera (combination of XT and XT2) connected to different sync modules that come up with Error - Clip failed to load upon playback. I tried power cycling the sync modules, cameras and uninstalled/installed the app. The live view on all cameras work fine, so I’m assuming that it’s not a signal strength or battery issue. All cameras and sync modules have been working fine for the past 14 months. The load error is intermittent and there is no pattern to when a clip will load or not load. This occurs on several android phones and tablets.
Any suggestions will be greatly appreciated.
Best regards