Flaking, Split and Doubly Printed Models
So I bought my S4U around November of 2024 and it pretty much printed flawlessly for 6 months, could print pretty much anything I wanted with minimal tweaking.
After around the 6 month mark, my screen started to degrade, as it started forming black spots. I replaced it maybe 6 months after that. During the time before I replaced the screen, I also began having another issue which is what I'd like to ask about today. My printer seems to have developed a habit of creating these flakes or leaves on both my prints and their supports (even if the print seems fine otherwise), while also just not printing some sections of the prints or the print would essentially print twice within itself.
I've been passively trying to solve the problem up until the past two months where I just want it solved. I've replaced:
-Screen: Although it now prints backwards, the issue started before the replacement, so I doubt it's that, though it may have contributed in worsening the problem.
-Build Plate: One corner wouldn't loosen enough, not allowing me to fully level the plate.
-Vat: I purchased an upgraded Hoopat, since I assumed the tension from it would be more reliable than me tuning it manually. I also decided go with ACF.
-Resin: I thought it could've been a bad batch (although it was more than one tub that didn't work well...), so I switched from Siraya Fast Grey to Sunlu ABS-like Grey. I calibrated it with cones and it seemed they formed the best between 1.7s and 1.8s.
-USB: I learned the day before yesterday that USB's should be in the FAT32 format and that they should be as clean as possible (lacking corruption). So I've ordered a SanDisk that should arrive on Friday.
I had contacted Elegoo but I just didnt feel like I was getting anywhere. There are also other models in the print, though this would happen even if I printed the model alone. My next theories are the USB and the light-off delay, but I figured asking wouldn't hurt, I'm hoping it's just something really simple... Any help would be greatly appreciated.