u/Puzzleheaded-Tree561

Defect on first layer printing PLA

Defect on first layer printing PLA

Just opened a brand new spool of pineapple yellow pla from Prusa. It's giving me a lot of trouble printing the first layer on the smooth PEI sheet, which I have never experienced before.

I get all these weird ripples and bubbles where it seems to delaminate in places (see pic).

I've been printing Prusament PLA for about 3 years now I have never had this issue before. Just wondering if someone might know what's causing it so I know what to start adjusting. Thanks to anyone who read this.