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August 28, 2026
Question

Can't resize Mermaid blocks after converting

  • August 28, 2026
  • 2 replies
  • 46 views

Product area Diagram as code → Mermaid

Steps to reproduce

  1. Insert a Mermaid diagram via Diagram as code.
  2. In the Diagram as code panel, click Convert to diagram (button wording may vary).
  3. After conversion, click an individual node/rectangle.
  4. Try to resize it by dragging the resize handles.

Expected result After conversion, nodes become standard Lucid shapes (normal rectangles) with fully functional resize handles.

Actual result Nodes still select as “Mermaid Rectangle Block” and cannot be resized (handles don’t work), even though:

  • The diagram is no longer editable as Mermaid code
  • There is no longer an outer Mermaid diagram/container to select
  • The nodes are not locked

Impact User cannot adjust layout/sizing after conversion; requires rebuilding shapes manually or restoring a prior version.

Comments

Leianne C
Lucid support team
September 1, 2026

Hi ​@fasdfasdf, thank you for posting in the community. I believe you have identified a bug, and I have reported this to our development team. I apologize for any disruption this may cause, and I will update this thread with any new information about a fix. Please follow along on this thread for updates, and post any additional questions or concerns below.

Leianne C
Lucid support team
September 21, 2026

Hi ​@fasdfasdf, I have good news! Our development team has let me know that the issue should now be resolved. I’m sorry for any inconvenience this may have caused.

If you’re still seeing the issue or have any other questions, feel free to reach out. I’m happy to help!