I had the same problems guys with LHR 3060Ti just appearing to stop mining to the pool - this is after they had been running on NBMiner with the partial unlock for nearly 5 months without an issue.
In the end i bit the bullet and went to Lolminer, updated the latest Nvidia drivers and did a complete in place new install of Hive and it has been stable for the last 24 hours
I’m having exact same issue. Although I’ve tried switching between lolminer and nbminer, as well as nvidia driver versions. Best I got was a few hours on nbminer with 470 nvidia driver. Trying lolminer with 470 now.