i get a Stack Dump with cfg USB Loader 53b and cIOS222 rev5.
The video doesn't help much since the stack numbers are not visible. However i can see that you use the normal 53b.dol which boots to cios 249 first and i guess you have ios=222 in config.txt so it reloads to ios222. Can you try with the cfg53b-fat.dol, which boots directly the ios222. Maybe this is the problem.
Which rev. of cios 249 do you have installed?
cfg53b-fat.dol works.
but in cfg53b.dol (with cIOS38 rev17), when I start a game with 222-mload, I get the Stack Dump: