Importing .mcpack file doesn't seem to work anymore.

[queenbiscuit311]

When trying to import an mcpack using the command from the .desktop file for the program (/usr/bin/flatpak run --branch=stable --arch=x86_64 --command=mcpelauncher-ui-qt --file-forwarding io.mrarm.mcpelauncher @@u %U @@), the following error is thrown:

QProcess: Destroyed while process ("/app/bin/mcpelauncher-client") is still running. terminate called after throwing an instance of 'std::bad_alloc' what(): std::bad_alloc

This used to work, I'm not sure why it's not working now.