Same - I actually switched to Jessup for this reason. I had 4 boards in a row do this with Mob. The grip on the nose and side rail was peeling, and it had bubbles that wouldn't go away no matter what.
I'd never regripped a board until this year - and I've been skating for 20+ years!
I actually realized that I like Jessup better anyway - it's way easier to work with, if I do get a bubble, they come right out and it's plenty grippy. I used to sand down my Mob a bit anyway. Glad to know I'm not crazy - seeing others having the same issues.
PS - all the Mob were from different rolls, different shops... so they weren't just a bad batch.
Anyone else had issues with Mob lately with regards to bubbles/peeling? One grip job of mine recently just wouldn't sit still, the grip kept coming unstuck at a few spots regardless all effort to fix it. Plus the tape seems way stiff somehow. Haven't experienced this with Jessup or others lately.