OK, I have been at this issue for a few hours now, so I know I am not crazy.

I have a JTV-59 connected via VDI to HD500 connected to DT25 via Line 6 Link. I have a Mission Engineering EP1-L6 pedal connected to HD500 with a 3 foot 1/4 inch Live Wire cable (quality cable). Firmware 1.4 on HD500 and I am using HD Edit 1.06. Latest firmware on JTV.

What I am seeing is the expression pedal assignments changing on their own from patch to patch. I have the on-board expression pedal assigned as a wah (expression 1) and the External Mission pedal assigned as a volume pedal (expression 2). I set up the patch and have it working, when I switch patces and come back to the patch the expression pedals often swtch assignments making the wah and volume control swap pedals making this quite frustrating and useless. A few times I saw the Volume pedal seem like it is working, but no volume changes.

IF I pull the 1/4 cable connected to the Mission Pedal out of the HD500 and re-insert it, it fixes the problem until I leave the patch and come back!!!

No mattrer how many times I save this preset, reboot the HD500, restart HD Edit, etc the problem returns. If I reverse the assignments for the pedals, it does not fix the problem.

Why is there not a global setting for expression pedal assignments that stays put?

When I was using ONE pedal (the internal one) to switch between wah and volume with toe button it worked better. BUT I need two pedals, so I bought what was claimed to be the best external pedal for HD500. Bad enough the Mission cable has no toe switch so I made it the volume control instead.

Anyone see this problem or have a fix?