I have a Pinephone currently running Manjaro Linux, with the Plasma Mobile shell. Some flatpaks open just fine, but others will pretend to open but they actually crashed.
For example, the one I am currently trying to figure out is Shattered Pixel Dungeon. I get the following output trying to launch from terminal.
$ flatpak run com.shatteredpixel.shatteredpixeldungeon Exception: java.lang.NullPointerException thrown from the UncaughtExceptionHandler in thread "main"
The flathub page had a link for me to file a bug report for the official project, but they closed it saying that flathub is not an official distribution method for them.
Who would I go to for help figuring this out? I’m not in the right league of skill as a programmer to figure something like this out on my own.