PCCC protocol causing problems

Here is what I got from them.

   The issue you are seeing is due to an known issue with older AB drivers in ignition. 
   This issue has been resolved in later updates, these updates are included with the 7.5.12 updated release.
   In terms of impact on your system, this will just be an update with the latest bug fixes and improvements to ignition. 
   I would not recommend just installing the updated AB drivers since I can't say how that will work with the older
   version of ignition 7.5.5. 

I have since upgraded to 7.7.8 (LTS) and it still does it intermittently.