# Fix BPMN editor problems

Four things account for nearly every BPMN editor question, and one of them is a deliberate design decision rather than a fault.

AI cannot write BPMN for you. It is an XML format with strict semantics and diagram interchange geometry, and generated output is not reliably valid.

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## What this is for

* A canvas that opens empty.
* Warnings after importing a process.
* A properties panel too narrow to use.

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## How it works

| **Action**                | **How**                                                                                   |
| ------------------------- | ----------------------------------------------------------------------------------------- |
| Empty canvas              | A new diagram starts with a single start event. If even that is missing, reload the page. |
| Import warnings           | Usually vendor extensions the editor does not use.                                        |
| Cramped properties panel  | Drag its edge. Several property groups need the extra width.                              |
| AI will not generate BPMN | By design. Use the editor, or model it as a flowchart first.                              |
| Editor will not load      | Hard reload, then a private window to rule out extensions.                                |

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## A few things that catch people out

* If you want AI help with a process, generate a Mermaid flowchart and model the BPMN from it.
* Import warnings are informational. Check the process still simulates correctly and move on.
* Broader symptoms are in [Troubleshooting](https://help.gocapable.com/diagrams/troubleshooting.html).

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## Related

[BPMN palette and context padTwo ways to create elements, and one of them is much faster.](https://help.gocapable.com/diagrams/bpmn-palette-and-context-pad.html)

[Build a BPMN processFrom start event to end event, in order.](https://help.gocapable.com/diagrams/build-a-bpmn-process.html)

[BPMN editorBack to the editor overview.](https://help.gocapable.com/diagrams/bpmn-editor.html)

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_Simulate it before you publish it._