I have the same issue. Unfortunately, the only way i was able to all run together was by using the latest driver 470.63.01 but that means lowered hash rate ~27MH/s per card.
Oddly enough, however, is that all my cards are v1. 3 of them are not LHR but afaictl the last one is LHR. It is on BIOS 94.06.14.40.45, and I tried using the VBIOS from the NON-LHR and flashing it to the LHR card but it wouldn’t take. Complained about wrong PCI ID.
Anyway, so i tried to see if I could run different drivers for diff cards, and reached out to HiveOS support but they said it’s not possible. I’m thinking maybe running docker?