Scene Optimizer not loading new maps in surfaces

AlmightyQUEST

I am having an issue with Scene Optimizer and Fitzgeraldplatz U-Bahn. I am running the scene optimizer to reduce the size of the maps, and it runs and completes, but it is not applying the new maps to the surfaces. I have tried this a couple of times starting from new scenes with nothing else in them. I am able to run this on other objects and it creates the maps AND applies them as I expect, and I can see the newly created maps in the folder so I know the first part is working on this item, but not the second. The U-Bahn has a lot of surfaces with a lot of maps, so it would be a pain to manually replace all the maps, and also defeat the purpose of the scripts.

Has anyone seen this before, and what troubleshooting steps are there for me to get this to work correctly?