UR-44 Loosing audio -have to restart dspMixFx

I just installed my new UR-44 and also updated to the most recent 2.0 updates.
I have noticed 3 times that when monitoring thru dspMixFx, the sound will suddenly change to a thinned out signal with lost of treble. In order to fix this, I have to close and re-open dspMixFx. It seems like a memory issue.
This happened while recording a vocal in Studio One and also when playing guitar thru the dspMixFx on my desktop.

I am on Windows 7 64.

Anyone else heard this?