Warped top surface layer

Kyc_spacer.stl (34.2 KB)
I’d wager it may as well go well a few next times. It’s just something that pops up from time to time. There’s not much I can do about cooling, it I use the fan I’m going to have highly warped bottom surface and likely the print will pop up during printing. I have Z-ASA-pro, newly purchased for testing.
Sadly I can’t run the print currently due to This
By the way - how often do you suggest X/Y axis motor replacement? It seems both of mine gained some resistance on torque.