Do you have the “space” parameter active and turned up? That give a chorus type sound.
That must be it. I noticed that some values of those parameters have been increased. I now have all of them turned counter clockwise. Solved. Thank you Don!
are you monitoring both signals simultaneously? (and if so - why?)
Yes, for reason of stereo for both my KRK monitors. Therefore, if present, I set the stereo parameter to 90 degrees. On stage I do the same for FOH.