Weird layer separation issue

• Saturn 4 Ultra 12k

• Chitubox Slicer

• Elegoo Grey Standard Resin

• Just replaced FEP

• Just manual leveled and it seemed acceptable

Ive done around 10 large statue prints so far with this machine without any real issues. Maybe a misprint here and there but the next print would be fine.

This is like 3 or 4 prints in a row now that ive had to throw away and theyre all appearing roughly the same as this one had; Random layers of the print are just missing.

The printer did sit for a month cause i went on vaca. Since ive come back it started having the problems.

The pic of Chitu is just a fast recreation of the angle I had it at. Its not the actual slice I used.

Any ideas here? Thanks.