Every so often I was getting the Error Miner Thread hangs and had to press a key to restart mining.
Most comments I read on this said it was probably down to an overclocking issue. However when I reset the GPU's to stock setting in MSI Afterburner I was still getting the issue.
The solution was to turn off Quick Edit in the claymore window.
Right click the top bar and select properties. You should see a screen like this.
Uncheck the quick edit mode box and you should be good to go.
Happy Mining