Pixelwave (which also somehow corrupts after restarting Invoke (happened twice today, testing for the 3rd time today) does not load using the official nf4 version. My guess is that the keys have different names or something like that. Similar to what happened with Flux LoRA's from different trainers.
p.s.:
Pixelwave Q8 GGUF (fresh download from the official repo) does get added and "loads", but still generates a black image with settings that used to work a few days ago (Invoke 5.3.1). It worked for a while a few days ago. I don't understand why it does not work anymore. I am still using Invoke 5.3.1.