I´ve tried tunning printer settings with different Nozzle(190-210 ºC)/ Bed(0-60 ºC) Temperatures, Fan Speeds (0-100 %), Cura and Slicer adjustemens but nothing worked. I still get the same bubbles in the first 3 mm of every print. I also tried a glass bed and the magnetic bed that comes with Ender 3 pro and the result is still the same. The last thing I tried was moving the 0 position of the Z axis 10 mm up, but it didn´work.
What else could I try? Any idea of which could be the issue. Thanks in advance.