Used Bambu PLA with all default settings which have worked so far without issues.
After first fail which was identical to this pic, I cleaned the PEI textured plate, and the nrotated on Z-axis by 90 degrees. Same part failed, in the exact same manner.
Looks like adhesion to me but things you could try in the mean time… You don’t say how you clean but you want plain dish soap (I use thick suds) to clean with and dry with a fresh paper towel. That works for me.
Temperature on the build plate can matter too. I run 58C on my textured PEI (instead of the stock 55C) with PLA and that works well here. Adding a few degrees can help but I don’t know the upper limit. But hotter may help.
Worst case is some recommend scuffing the plate lightly. Rubbing alcohol can remove some things too but you need to flood contamination off or it can redeposit when the alcohol evaporates.
That would print fine here though. For some reason you have low adhesion overall or at least in that location since the other leg seems to stay in place. Maybe there’s a fingerprint or light spot of grease there.
But a wider brim might get you past the issue if none of this actually fixes it.
