The preview error
XOJITError: Universal binary /Users/me/Library/Developer/Xcode/DerivedData/MyApp/
Build/Products/Debug/libSetapp.a does not contain a slice for arm64e-apple-macosx21.1
macOS 15.3 (24D60)
Setapp 4.2.2 (via SPM)
Xcode Version 16.2 (16C5032a)