Change the value from 300 to 1000 or 2000 (this gives the player more time to process damaged streams).
The quickest fix for any MKV issue is replacing your default system player with a program that natively supports the format. mkv com movies fixed
When you prefer not to install software, online repair tools provide a convenient alternative. EaseUS offers an online video repair tool that can fix corrupted MKV videos quickly. CleverFiles also provides online MKV repair capabilities. Change the value from 300 to 1000 or
mkvmerge -o final.mkv -S original_movie.mkv subs.srt # or include both mkvmerge -o final.mkv original_movie.mkv subs.srt EaseUS offers an online video repair tool that
is the premier tool for working with MKV files. When merging or processing videos that show sync problems, enable the “Adjust timestamps to achieve audio-video synchronization” option in the GUI. The tool can also preserve or automatically adjust timestamps based on your configuration.
An ounce of prevention is worth a pound of repair. Follow these rules to avoid needing "mkv com movies fixed" again:
Download the latest static build of FFmpeg and extract it to your C: drive.