Nice model and nice print profile. Maybe the lower white dot is too small and sometimes it goes away during the print. By the way, the result is stunning!
Sorry to see that, In your photo I noticed a indent were the lower white dot should be. Possibly a slicer issue? I will look for a fix for that if it's because of a modeling issue!
Thank you for the answer! I used PETG foor the white dots (i have run out of white)... But i will try again when i receive the new white PLA spool! I think it's not an issue of the profile, it's a material issue!