I have three a119v3 dashcams. Two new cards (one 32, one 64gb) having the same issue. The cam will beep randomly (write error?) and restart another recording file, resulting in a loss of around 10 seconds of footage. Tried everything: h2w check was normal, full format using sdformatter etc to no avail. I think the dashcam doesn't play well with SanDisk High Endurance cards.