It seems to be related to NTSC only; I don't have an NTSC Wii nor WiiU so I am not able to replicate the problem.
This is a new version repacked from official channel posted in your main download site. Can you please test it ?
I think the problem is in the forwarder .dol (contained inside the forwarder).
I had this issue in one of the channels. But i just tried USB LoaderGX forwarder again (the original one you posted) and there's no problem or distortion. I was going to test the new one you posted, but I can't replicate the issue I was seeing anymore. Maybe the OP of that problem can report. If it happens again I'll report back. Thanks for all the forwarders!











