Midi export isnt exporting correctly the duration of the notes

So when I export a drumset part to Midi the duration are wrong (a note starts and it continues until the next note, eliminating all silences). ive tried exporting with and without Rpns and repeats and nothing works.

I attached the picture of the midi and the score of the drum part

Edit: I started the score in Musescore 3 but later I opened it in Musescore 4 when i updated. Also, uploaded the full score.