Same issue here after making very few code changes. I'm trying to understand, does the "Processing" they do for the App Store remove certain libraries?

Same here. Everything I'm finding points to this being a temporary issue on apple's side. https://developer.apple.com/forums/thread/25267 https://github.com/fastlane/fastlane/issues/17330 '* edit Just got it to upload on my 5th try.