So, I’ve got 15876 serials that match RRFFT-SDEPV-TBSRI-YBJQJ-SJOEF.
There are a couple avenues I haven’t explored in in a few tries. They may or may not be dead ends, but the binary has a weird spot in the argument processing that might be real and might just be an artifact of my toolset.
I’m starting to think the only way to solve this level is to generate every possible collision (no idea how many yet, probably in the hundreds of thousands?) and try all of them