As of Friday when corrections are made in First Light with either the scroller bar or on our wave board unit, there's a lag and the look flashes on and off.
Any suggestions on how to overcome this?

Not seeing a lag here, I occasionally see a flash, but that has always been there, nothing should have changed in this regard in 308. However, if you have a bug report submit it to support. The forum is for asking help from other users, not as a direct contact to CineForm.