I still have problems.
After exiting the first time because of a Dag file not verified, I restarted the miner and I got another error, it sees only 3GB of memory on 2 GPU.
Restarting the miner didn't solve the problem, I could fix only rebooting the rig. I use TBM 1.18 on HiveOs latest version.
I also use CPU mining with cpuminer-opt-gr

here's the screenshot
https://ibb.co/mXyvnXJ