Emoji handling (usually a sign of underlying Unicode bugs) is broken in Xcode 27, all betas:
The issue doesn't exist in previous Xcode source editors.
FB23969935
Regression in Unicode handling in Xcode 27 text editor
Thank you for this bug. The screenshot was not attached to the FB number. Is that the screenshot you posted here is the one you wanted to post on the bug? Any chance you can upload to the FB the screenshots in Xcode 26 vs Xcode 27 so is clear the issue?
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Albert WWDR
Apologies. Attached both the above image and one from Xcode 26 (both on macOS 27). Both are configured to use the same font, but I don't think that's the issue.