As soon as I add an image with more than 640px (longest side) to an AR Resource Group as an AR Reference Image, Xcode crashes immediately. I narrowed it down to that value. It does not seem to matter whether jpeg or png and the file size seems to be irrelevant, too. The problem came to my attention when I tried to run a new Unity build of an AR App I created a year ago (for testing) in Xcode. This used to work flawlessly. Now It doesn’t; the build produces an error „Command CompileAssetCatalog failed with a nonzero exit code“ … and when I try to click on the Asset Catalogue inside of Xcode, Xcode crashes also immediately.