using 32 bit on x64 system as its more reliable (V2.002.0000007.0.R.181023), made a mistake by trying to fix this bug of upgrading to 64 version which deleted all pass/user logins and i had over 20 cams on that system (i assumed the x63 system read the devices.xml file differently so could not read the hashed passwords)..yes i had similar issues of the software just crashing, you have to ensure you didn't make any new camera additions when it does or you will lose those cams, i found an odd fix for my bug by moving the whole smartpss folder into a USB and running form there, it worked but you can't run it directly off the PC because it then read the winsxs files instead of the MSVCR .dll files it alreayd had in its own folder..