Can't run the package on Archlinux

[KopfKrieg]

I'm using flatpak 011.7-1 on an up to date Archlinux installation. Other flatpaks I've installed for testing (Steam, Minitube, X Moto) work fine. When I'm trying to start the game, following error message occurs:

$ flatpak run net.sourceforge.atanks
Atomic Tanks Version 6.5 (-h for help)
Authors: Tom Hudson        (rewrite, additions, improvements)
         Stevante Software (original design)
         Kota543 Software  (fixes and updates)
         Jesse Smith       (additions, fixes and updates)
         Sven Eden         (ai rewrite, additions, fixes and updates)


Error occured. Unable to create sub directory.
Shutting down Allegro due to signal #4
$

Unfortunately I didn't find any solution to the error. Any idea what I can do about it or how to resolve the error?

[sat3ll]

https://sourceforge.net/p/atanks/atanks/ci/master/tree/src/files.cpp#l370

	// file not copied yet, create the required directory
	snprintf(buffer, PATH_MAX, "%s/.atanks", my_home_folder);
#ifdef ATANKS_IS_WINDOWS
	int32_t mkdir_status = mkdir(buffer);
#else
	int32_t mkdir_status = mkdir(buffer, 0700);
#endif // ATANKS_IS_WINDOWS

	if (mkdir_status == -1) {
		printf( "Error occured. Unable to create sub directory.\n");
		return false;
	}

It's failing to create ~/.atanks directory. Does this happen with a non-flatpak version? Could be a bug with atanks.

[KopfKrieg]

Does this happen with a non-flatpak version?

There's no atanks PKGBUILD, and I currently don't have time to write one, therefore I can't test it right now.