I had some issues. I managed to resolve them though.So is nobody else having issues with Oot3Dhax?
When first updating to 11.1 Ninjhax and OOTHax refused to run at all even with the new QR codes. Steelhax was still fine.
I rolled back to 11.0 and they were still broken even with the old, previously working payloads. Steelhax again, just fine. I was confused as to how this could be the case.
I went back further to 9.2 and they were still broken. Steelhax still working on 9.2.
Then I ran 9.2 without Luma and they all worked again. Back to Luma, still broken.
In the end it turned out that N3DS CPU Clock+L2 being active was the cause of the crashes. After setting it back to 'Off', all paylods worked again on all firmwares. I have no idea what happened but this is my reality now, anything that's not Steelhax or HBLoader requires that CPU enhancements be set to 'Off' in Luma.