Batch Fixup Redirector for Unreal
Description
A very simple plugin plus a Python script that fixes up redirectors in batch in Unreal Engine — without the editor crashing on you, which is what tends to happen when you try to fix a large folder by hand.

Two ways to run it
Blueprint widget: drop the plugin folder into your project's Plugins
directory (create it if needed), let the project compile, copy the .uasset
widget into your content folder, then right-click it in the engine and run the
widget.
Python: keep fixup.py anywhere, set the target path inside it, and run it
from the output log (switch the console from cmd to Python first).

The path must be an in-engine path starting with /Game/ — everything inside
it is fixed up recursively, subfolders included. One caution: avoid pointing it
at /Game/ itself unless your assets are already cached, because the engine
will load everything under the path, and that costs time and CPU.