Android app: Text placement problem & Playback problem

I have uploaded a score to the MuseScore web site, and subsequently downloaded it to the MuseScore Android app.

It looks fine, and plays back fine on the web site. On the app, however, the initial text is misplaced, and overlaps the score.

Also, in the app, the notes at the end of Measure 20 and the beginning of Measure 21 do not sound during playback. They play back fine on the web site, and in the program on the PC.

I have not made this piece public yet because it is a work in progress. Here is the link:
https://musescore.com/user/2770276/scores/6612723/s/cdoQLW?share=copy_l…

I am also attaching the .MSCZ file.