Hi I am trying to create a new document type in my Xcode project but the Document Type pane is bugged. I can't see all the fields, can't click on anything where it says 'Click here to add additional document type properties' and the text fields are even being rendered upside down! I first tried on Xcode 13.1, then updated to 13.2.1 Same issue. Computer language set to English. Nothing unusual about my OS. I tried adjusting my screen resolution. Nothing. Mac mini (M1, 2020)
I reported the upside-down text issue here: https://developer.apple.com/forums/thread/691718
I filed a feedback, ref: FB9684421
I haven't had a response from Apple.
The original problem was random, and has not happened (for me) on the latest Xcode (13.2.1)
Same on MacbookPro Late 2013, Big Sur, Xcode 13.2.1
Found a way to set the values: Add Document Types (Like you did), then go to the project's info file and add one value (like: "Document Extensions") to the . The when I close and reopen my project the "additional document type properties" are available in Document Types. I do not know how to upload an image to the dev. forum, so I can't show how. (How did you post the image?)