Please post pictures so we can see what is going on.
Steve attached are the pics. It happened to a flag I was printing before this too, but discarded it. I was on perhaps the last yard or 2 when this happened. It weird, hope you can tell me what is going on. I have a large order to print and will be putting a new roll on, but don't want to do it until I find out why it happened. Hope you know
it looks like oversaturation of ink. Are you using max impact for a color preset?
What profile are you using?
Rob, found out the problem. It wasn't the ink, the vinyl was screwed up. It was about the last 2 to 2 1.2 yards of the roll had a problem. I put a new roll in with the advice from tech support and it's now printing fine. No bubbles. Thank you anyhow, it was really weird.