The ResavePackages commandlet can be run with the -FixupRedirectors option to try and fixup all redirectors in your project. Here's an example command line:
UE4Editor.exe <GameName or uproject> -run=ResavePackages -fixupredirects -autocheckout -projectonly -unattended
This version of the command line would be run by a user on their local machine. It will check out all files that need to be fixed up, and the user needs to submit them. -autocheckin can be used by an automated process and it will also check the files in for you.