mastercomsrm6.8.0b4 caused some instability.And this did not happen on b3?
my whole computer lagged so hard while i was playing lobby that i needed to reboot.
and then after the neXt lobby ended my game just became straight black (net_graph was visible tho, even active).
Also, what modules were you using?
i didn't manage to play with b3 bc you already released b4.
i was using preset_very_low.