About the phenomenon that some sounds are not played in the score on the site.

I recently updated this score from version 2 to version 3 and uploaded it to the musescore site.
https://musescore.com/user/3797871/scores/5251622?from=notification
However, there is a phenomenon that some sounds of bars 18, 20 and 68 of this score are not reproduced.
The same phenomenon occurred when I created and uploaded only this measure with a different score.
I tried it on two different PCs and got the same result.
Please let me know why it plays fine in the software but not on the site.
In addition, even if you try to upload another song, some sounds will not be played, so uploading the score is currently stopped.