FAULTS WHEN EXPORTING TO MP3, FLAC, OGG, WAV

Hello greetings. I've had problems with files exported to mp3 (and so on) for two days.
When playing, notes are abruptly cut off.
I thought it was a dynamics problem, that the program was not reading correctly when going very abruptly from a pp to an mf, for example, but that's not it. I corrected it, using crescendos, and it still fails. The worst thing is that it fails where there are notes without a change in dynamics (example trumpets)
Attached mp3 file and sheet music. By size the MP3 is linked.
https://drive.google.com/file/d/1GvvHH67OIn9781kxJdnnOefiQHodUvRO/view?…

I will appreciate help, since I must submit this work.

Kind regards,