Yesterday my Dash Cam icon was indicating that it wasn't recording (grey X) This happens every few months. As I've done in the past, I removed the properly formated USB, deleted all the files and kept the Tesla Cam folder in it. This AM after replacing it, there was a red circle where it's ususally black. When I tapped on it, it said "Some clips not saved - USB too slow for dash cam." WTH? It's been working fine. I've used a highly recommended USB from Amazon that's been working great up until now. Any idea why the new error message?