Playback in the preview window is stuttering randomly and cannot be used for accurate editing. You can see the playback marker on the timeline jumping backwards. I've recorded a clip of this bug with OBS Studio, which you can see here. Please fix this!

https://www.youtube.com/watch?v=hsUIDxkgls8

The clip used was recorded with a Samsung Galaxy Note 8, standard mp4 format, at 30 fps. I have dozens of clips in mp4 format, at various frame rates, such as 24, 30, and 60 fps, and they ALL exhibit this same stuttering behavior.