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FCPXML Crash - FFXMLExporter(TextStyleExport) newTextStylesForAttributedString:registerStyleTo: #521

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FCPXML Crash - FFXMLExporter(TextStyleExport) newTextStylesForAttributedString:registerStyleTo:#521
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FCP 12.0.0macOS 26.2

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@benblaser60
benblaser60
opened on Feb 21, 2026

Apple Feedback Assistant ID: FB22029579

DESCRIBE THE BUG:
Export FCPXML, crash, period.

TO REPRODUCE:
Export an FCPXML of a project

EXPECTED BEHAVIOUR:
For an FCPXML to export without crashing FCP

SCREENSHOTS:
It's a crash...

SPECS:

  • 2021 16-inch MacBook Pro (M1 Max, 64GB RAM, 8TB SSD)
  • macOS Sonoma 26.2
  • Final Cut Pro 12.0.0

ADDITIONAL COMMENTS:
Never had this issue before updating to FCP 12.0

VideoAppDiagnostics-FinalCut-2026-02-16-193249.tar.gz

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