Battery Cam and Events

It seems to be a game of roulette as to whether I can playback events on the SD card of my Battery Cam. I am at a loss to explain what is going on. It clearly fires events and I can see them in the events tab in the app. Here’s where it gets squirly. If I jump to the SD card (big 256gb) sometimes the events show up (after a certain delay of minutes etc) but 99% of the time, I don’t see an event to playback.

Obviously I have it recorded to the SD card because SOMETIMES I can see the playback. Mostly, I can’t. What is going on?