When saving the bluebarrel001 prop with the stock duplicator my game crashes with the Exception Code 0xC0000005 with the information of, "The thread tried to read from or write to a virtual address for which it does not have the appropriate access. Also not heap information is present. (Read from the Dump file)
The only thing I have tried so far is setting my GarrysMod folder to not read only maybe that would allow it to save dupes. But it didn’t work, obviously.