I may have fixed this already. I noticed in the log the SPI buffer warning. I increased the SPI buffer in raspbian to 8192 and now it seems to be working. But, my config must be totally broken in this version as I can't seem to power on my PSU anymore due to no PS_ON port defined. Off I go down the rabbit hole. 🙂
edit: config fixed by changing M80 to M80 C"pson"