Debugger Option with USB gecko attached crashes the game? #1349

I've been trying to do some small debugging, so I enabled the debugger option and launched a game with the usb gecko attached, while reading from the gecko. But no game I tested ever passed the boot. I tried a Metroid Prime Randomizer ciso, a vanilla Prime 2: Echoes iso, and a shrek smash'n crash racing iso (all PAL). Sometimes I got output like this:

���<��
?�O?���������?�{?�8��\<��
���<��
?�O?���������?�{?�8��\<��

but most of the time it was nothing with it eventually playing the obnoxious crash sound.