The side that it happens on is immaterial. If the sliding of the sprocket binds ... either side can jump off track. CLEAN AND LUBRICATE THE PINS.
Again I ask: What brand and series of vinyl? What brand of foils?
Did you try a different vinyl and foil to test the problem?
How old is your Edge?
There is no special setting for the white if you are using Omega to drive your Edge and are using Gerber vinyl and foils. The temperature and other settings are applied automatically from the software.
I also must ask: Since this has happened to you repeatedly, are you still using the same white foil or have you switched to a fresh cartridge?
I have cleaned and lubricated the pins, that was done yesterday. The sprocket that moves, moves fluidly.
Avery 900 and ZeroNine Foils
I loaded a roll of Briteline with a different color foil from what I was using, still happened. See photos, the first is the "pull" on the sprocket closest to the control panel. The second photo is what EVERY piece that the issue occurred in looks like, and this is from the adjustable sprocket side.
Ran the Briteline/Other foil again, it didn't happen, and printed through a 12' run without issue.
We've owned the Edge for little over a year. I cannot tell you off hand exactly how old it is. When purchased, we used a distributor to look it over, and then any maintenance at that point it needed since it sat for years.
I did call Gerber for tech support and they suggested turning the heat setting down through Omega, which I did and it didn't fix it. I'm following up with what their next suggestion would be. I have had no issues up until yesterday with printing long runs.
Since the issue began yesterday, and as I stated in my original post, I've attempted to change rolls of vinyl, and switched out different foil cartridges. Did not fix the issue.
In addition to your questions... in the morning, I can print longer runs without issue. By 12, I can't get through 3' without a problem.
To answer jfiscus, I checked about 20' on a roll and the perf portions match perfectly. Would you suggest checking more? I also adjusted the pressure setting yesterday, directly on the Edge, didn't help but I only tweaked it slightly. I'm printing from Omega with the 220 setting, do you suggest something different?