Varia 715 RCT camera records sporadically

I have camera set to record continuously. The red recording indicator is on constantly. I get home and review footage to find that the camera has either quit recording or did not start recording even though the light is on. Software/firmware is up to date. Had an incident the other day and when I went in to look at video I found recording had quit only an hour into the ride. I have a 128g card in it but it should overwrite anyway. I also tried reformatting the card.