I had similar issues in a hybrid system. This was running DFF1, MFD12, DRS4, TZT2, DFF3D, HUB101.
When first turned on, things worked great. The next day, turning on all gear after getting into deep water, gave similar results to what you saw; some type of issue with center beam. After messing with all settings, the only thing that solved it was full factory resets on hardware and reboot of all equipment when in water a couple of hundred feet deep. After that, no issue.
I don't think this is a noise problem. I have not seen these symptoms since, but have been using Nobeltec primarily.