By the way, I just replaced the gx2.elf with the old beta from18th feb to make it working again while taking the rest from the latest selfhost-SD Package from @Scuba156 it's definatelly the new .elf that causes this issue.
The exploit still works without issue just gx2 is crashing now with 160-2224 when I start the games. The only 2 games that work now (testen on my other SD on 64k) are ZombiU and Sniper Elite V2.
i think its maybe the combination of files you use if you use the wrong loader -> the elf does not work
so maybe if you use the right loader the elf will work too ;-)