Using cpu miner 0.31a. Algo cn-v7 on nicehash via ssl port 33363. AMD FX 8320 on two double threads. Speed about 175-190 h/s. Pool diff 100001.

Problem: Sometimes miner didn't find any share during hours! Untill restart them. All goes normal. Miner show speed, periodically recieves new jobs, no errors. But no shares for 2-3 hours?
After restarting miner, it start to find shares as must.
I think that it's due to devfee. I think that sometimes after mining devfee, it stop to find shares at all... Just thinking... But not every luanch this happens. Now I check after 20-30 minutes and if no shares finded, restart miner... This problem is on all previous versions. I just didn't try many hours before, and thinked that I'm not lucky... But after restarting miner it starts to find them.... It's strange...