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The app ID should be just fine, I’m using it too. It was just out of curiosity.
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I do have all 4 of the files in there, so that might be a slight issue but I’m not sure. You should try placing them all 4.
About the log you’re getting, it does not say much other than the Steam module is shutting down. Not why it is shutting down, so that doesn’t help either
Also, if you’ve upgraded your project from 4.8 to 4.9, double check the files in the 4.9 map structure. You might be pasting it into 4.8 by mistake or something, I had that once, took me a day to figure out why it didn’t work…