Weird layering
Anyone know what might be causing this? They're supposed to be smooth and flat sides (two halves of a hollow box-shape). The same weird layering thing happens on all prints, it's just easiest to see on these. Also parts of the bottoms slump instead of being perfectly flat. It used to work fine, beautiful prints. This is my first machine and I'm still learning.
The bottom of these objects are what attach to the supports and build plate. The clean-looking tops are furthest from the build plate. I print using angles and standard supports, the distinct angled line near the top is exactly horizontal coming out of the resin.
Saturn 4 Ultra 16k, ABS-like V3.0 resin. Standard settings for that resin provided by Satellite.
Recently went through the whole firmware reinstall rigmarole (frozen loading wheel, then 3x updates with help from Elegoo support). I also replaced the film using the proper Elegoo product and I'm quite certain I did it perfectly, but I'm prepared to reconsider.
Anyway, any help on what to try - I'd appreciate community thoughts! My first instinct is longer exposure time per layer but i don't want to break anything