Mac OS keyboard text replacement feature doesn't work
I use Mac OS keyboard text replacement feature[1] to expand abbreviations into canonical words. For example, “GH” → GitHub. However, it doesn't work in RubyMine main editor window or inside plugins (GitHub Copilot Chat).

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It may be a third party issue (Apple) however, I did find a related feature request, please feel free to follow it for updates: IJPL-55169 (https://youtrack.jetbrains.com/issue/IJPL-55169) - Text substitutions on macOS
It may be a third party issue (Apple) however, I did find a related feature request, please feel free to follow it for updates: IJPL-55169 (https://youtrack.jetbrains.com/issue/IJPL-55169) - Text substitutions on macOS
Joel Wisdom Thanks for the confirmation this is an Apple issue.
This is likely a limitation of how RubyMine handles text input. If macOS text replacement works in other apps but not in the editor or Copilot Chat, it's worth reporting to JetBrains with your IDE and macOS versions.