Fix DMN editor problems

Three questions cover most DMN editor reports, and the first is a design decision rather than a fault: a new DMN model opens as an empty default table, because that is what most people want next.

The rest are the usual browser-level checks.


#What this is for

  • A model that opens as an empty default table.

  • A thumbnail that will not generate.

  • An import that arrives incomplete.


#How it works

Action

How

Empty default table

Expected for a new model. Open the requirements diagram to add structure.

No thumbnail

Previews are written in the background. Wait a few minutes, then reload.

Incomplete import

Check the file is DMN and keeps the .dmn extension.

Cramped properties panel

Drag its edge to widen it.

Editor will not load

Hard reload, then a private window.


#A few things that catch people out

  • A new model with one empty table is correct, not broken.

  • Thumbnails lag saving by a few minutes, like every other preview.

  • Broader symptoms are in Troubleshooting.



Draw the map before writing the rules.