I can not reproduce this issue.
Which multimedia engine is used by the SMPlayer? I know it use mpv or mplayer.
What is the output driver in the “Preferences” → “General” → “Video”?
Do you have the SMPlayer log?
(The SMPlayer has its own log file in ~/.config/smplayer/smplayer_log.txt . If not, you have to enable “Save SMPlayer log to file” in the “preferences” → “Advanced” → “Logs”.)
Or you run smplayer in the console. You will see the error log after SMPlayer crashing.