According to the minidump, RC is loading RCEdit.dll from the Max root folder, instead from C:\ProgramData\Autodesk\ApplicationPlugins.
Probably it comes from an old version which was not uninstalled correctly.
Please, delete manually these files from the Max root folder: RCEdit.dll and RailCloneVRay???.dll. Same with railclonepro.dlo from the "plugins" folder, if it exists.