Dorico crashes on iPad

Hello,
I opened a project (which I have started on the desktop Computer with Dorico 4.3.31)
on my iPad with iOS 17.3.1 and the newest (?) version Dorico 5.1.20.
The project opened fine but, when trying to switch to Engrave Mode, Dorico just crashes. Very fast and without noise…
I open the project again, ok, I can change to page view, I can zoom in, but changing to Engrave Mode: crash again. I open the file, this time I would like to listen (it is piano-chant) but instantly when I tap the play button, Dorico crashes.
I looked up the crash file, here is the latest:
Dorico-2024-03-07-222723.ips.zip (12.9 KB)

[edit] in case it is relevant: the iPad was on a quite low battery level at that time, below 10%

[Update]
Last night I installed iOS 17.4 on the iPad.
This morning I gave Dorico another try, but this time I only got a blank black screen. Same thing after closing the application and relaunching it. I closed again and double-tapped the .dorico project file from within the Files App: Dorico launched to this blank black screen only. This would be the moment to delete and re-install an App - instead I looked at the App store and saw, there was a newer Version of Dorico (5.1.21).
I then updated to this version - and since then everything is fine again. No problem opening my .dorico project file and doing the Engraving I had planned to do - just inserting a frame break …

I mark this as solution myself, even if I don’t know the exact reason for this issue.