I've been trying to update my AssetBundle system to use the correct CRCs for files instead of passing 0. However, I keep getting this: Error while downloading Asset Bundle: CRC Mismatch. Provided c7e23ee8, calculated b884e9b0 from data. Will not load AssetBundle The CRC I'm providing is 100% correct...but it looks like Unity is calculating the CRC on the currently cached bundle and not the new one that I'm pointing to. Once this error occurs and you try again the cache has been cleared and everything works. This seems like a very serious bug. Has anyone else had this issue?