I've been editing MP4s in coolcut and they keep coming out with occasional glitches like the one in the enclosed picture. I've been ripping DVDs with Wondershare and MakeMKV and I could be wrong but it seems like these glitches don't appear until the final MP4 made in coolcut. Seeking through videos made in MakeMKV will sometimes show glitches that never actually appear when I watch the playback in coolcut. Someone please help me figure out what to do about this because I had almost an entire day's worth of work ruined by these glitches. Image
[Attachment 86993 - Click to enlarge]

I should note that I am between jobs and can't afford any better editing or ripping software.