First layer randomly was too high

Hi everyone!
I’m having a problem: the first layer is too high. This happens randomly, and I can’t figure out why. The photo shows the same G-code.
The nozzle is clean, the four screws are tightened, calibration is complete.
Has anyone else encountered this?

Does this happen even when you do the bed leveling before printing? I’m not super familiar with the A1 mini.