Only thought is whether you're using a USB hub of some sort. Are you getting USB device error messages? I noticed something similar when I had a Taptes hub installed on my Model 3 with my storage going through it. Dashcam and Sentry still seemed to work mostly, but after removing it the USB error notifications went away and my Sentry does seem to capture more frequently. Side cameras still seem to not trigger as often, but that's just a feeling and not something I have data behind.