Hi! I'm Joel, an 18 year old self-proclaimed puzzle designer and mathematician from Finland. I've used the burrtools program for a few years now, my thanks to Andreas Roever (Röver?) for it. Recently I've had this program searching for the highest-leveled solution assembled by picking six pieces among over a thousand pieces and assembling those to a kind of a six piece burr. But after having searched for solutions for over a month, it now gives me a runtime error and stops working every time I try to use disassemble. Just assembling works fine, sorting by "level" or "moves for complete disassembly" or the amount of solutions saved don't the affect it, the program still works. Only disassembling doesn't seem to. I'm running it on Windows 7. These runtime errors are actually kinda common and seem to pop up every now and then. Does anyone now how to get rid of the errors or at least get the file working again?