Just been mining a few hours with 0.4.2 and noticed it had stopped with a "msg buffer full" error.

I had been running 0.4.1 for longer and didn't have the error so not sure if it's something caused by the changes.

Rig is seven 1070s running on nanopool.

Performance for me is matching EWBF and seems a bit more consistent over time according to the stats from the pool.