Hey there @Toasty_Dolphin! Welcome to the community! You are correct, normally you wouldn’t get a response here as this forum is for Developers working in Unreal, however your thought process for possibly getting a workaround would be the one I offer first usually. Unfortunately a memory access violation like this can stem from many locations in the games source. Usually this error would give you some information on it, but because you don’t access to the source, it won’t provide much of anything.
It was a good idea to reset your Nvidia control panel settings as this can often help if the error up top is “nvwgf2umx” like the one in this post, however in your case it’s not likely graphical at all. I’d recommend trying to report it to Iron Mace so they can try to find a fix for it in the meantime and hope it gets sorted on their end.