Here is a little list of incompatible tools for windows 8.1 that I have found. I am making this in hopes that developers will take a look at these issues as windows 8 is on all computers now a days and you are forced to "upgrade" to windows 8.1
Kimera: Any edits to the animations will not save properly. Other parts of the tool work fine another then mentioned before and the compute weapon does not work either.
Makou Reactor: models will not import properly. You WILL have to do it all by hand again! Only problem I see right now.
These are the only ones so far that give me the most difficulty. Your results may vary. Post any in here that you have come across. You could revert to windows 7 however this is for those who do or may not have that option or the patients.
