Xcode 13 duplicates error messages in the editor

Every error in the editor is duplicated. At the same time in the Issue Navigator, everything is fine and errors are shown only once. This does not happen on Xcode 12, only 13.

Please see the screenshot. Would appreciate some help here, thank you.

Whats also super awesome is that applying fixits automatically actually duplicates the fixit on each line.

e.g. var color: CGColor = UIColor.red.CGColor Gives two errors: 'CGColor' has been renamed to 'cgColor'

Applying fix all issues turns applies the fix twice resulting in:

var color: CGColor = UIColor.red.cgColorcgColor

(Submitted as FB9637621)

Xcode 13 duplicates error messages in the editor
 
 
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