macOS 27 Beta: Detached Studio windows cannot be resized

Bug Reports Studio Bugs
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1

On macOS 27 Beta, any Roblox Studio window that exists as a separate window cannot be resized.

Steps to reproduce:

  1. Open Roblox Studio on macOS 27 Beta.
  2. Detach any dockable panel (such as Explorer, Properties, Output, Toolbox, or Assistant) into its own window, or open a plugin that creates its own window.
  3. Hover over any edge or corner of the window until the resize cursor appears.
  4. Click and drag to resize the window.

Actual behavior:
The resize cursor appears as expected, but dragging does not resize the window. The window remains locked at its current size and cannot be resized from any edge or corner. The window can still be moved normally.

Video of me attempting to resize windows

External Media

https://streamable.com/ec5bqa?src=player-page-share

System Info

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image544×990 46.6 KB

macOS software version:
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image960×112 6.41 KB

Roblox Studio version:
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image1050×1094 67 KB

Expected behavior

Detached Studio windows and plugin windows should resize normally when dragging any edge or corner.

Frequency:

  • 100% reproducible.

  • Affects every detached Studio window I have tested, including:

    • Explorer

    • Properties

    • Output

    • Toolbox

    • Assistant

  • Also affects plugin windows that open as their own native windows.

Beta Features Enabled:

  1. Animation Graph
  2. CreateAssetAsync Lua API
  3. glTF Export
  4. Live Animation Creator
  5. New Studio Camera Controls (Updated)
  6. Revamped Asset Manager
  7. Scene Analysis
  8. Video Uploads

(I don’t think any of these are relevant to the issue)