Thanks very much for all the info.
The DxDiag shows you have the current driver for your GTX 1070 and nothing else jumps out at me, although your system has had a bunch of program crashes (the most recent 10 are shown at the end of the file), and that implies some possible system issues. You can try using the
sfc /scannow and
dism /online /cleanup-image /scanhealth tools to see if they can find and repair any issues (Google for more info, if needed).
Next I downloaded your clip and tried opening it in PD17, and I get a blank thumbnail and nothing at all when I preview it. I looked at the codec details using MediaInfo, and it seems like a pretty standard H.265 clip. Here's a screenshot of all of everything:
So, the bad news is that your dashcam appears to be using a format that's incompatible with PD's standard codecs.
I used VLC to convert it to H.264, and while it's more than 2x the file size, PD is able to play it, so one workaround would be to use a 3rd party converter (like VLC or Handbrake) to convert your clips before editing them. Please download the converted clip from
here to test on your system.
I know that's not ideal but it's late here and I won't be able to do anything else until the morning. Maybe other forum members will be able to give you some different options and ideas for getting this to work.
YouTube/optodata
DS365 | Win11 Pro | Ryzen 9 3950X | RTX 4070 Ti | 32GB RAM | 10TB SSDs | 5K+4K HDR monitors
Canon Vixia GX10 (4K 60p) | HF G30 (HD 60p) | Yi Action+ 4K | 360Fly 4K 360°