I am at a loss and looking for some insight.  Surely someone has seen this issue before.  I use the expression pedal on my Helix Floor solely as a volume pedal in all my patches.  For a few months now, it has developed stability issues where sometimes it will not reach 100%.  Sometimes it will even will come off 0% when not being touched.  I have had to resort to running an external VP.  Line 6 support was 0 help.  Told me to send it in for a repair quote.  
 
	 
 
	What I have done so far.  Power cycling usually takes care of the issue but not always.   I updated to 3.6.  I did a factory reset and then re-installed 3.6.  The problem just persists.  Anyone seen this issue or have ideas on how to resolve?