Glitch sometimes at repeat section when play and export

do you also have sometimes a rhythmic lag when the playback replays a part? as if the last note before the repeat was shortened?
when I export audio it’s a little less blatant but even distracting

This isn’t something I’ve experienced or seen reported before. Can you attach a minimal example that reproduces the issue?

Hi Daniel,
Thanks for your answer…after restarting my computer, the problem is ok.perhaps too progams open?!