TWOMINUS, I use malwarebytes , but only as a cleaning tool, I never use the monitoring side of it.
Mine as never found anything untoward from WGT including the ads and vids.
What you could try is , disabling the monitoring side of it, or Malwarebytes altogether, re-visit the page that is giving the confict, then re-start MWB and run a scan, I think this will prove what your getting is indeed a false positive.
though MWB is a very good tool, it also can be very sensitive. Hope this helps.