Bug report #16204
Symbol selector dialog: Clicking on the "data-defined override" button disables its configuration
|Affected QGIS version:||master||Regression?:||No|
|Operating System:||Easy fix?:||No|
|Pull Request or Patch supplied:||No||Resolution:|
|Crashes QGIS or corrupts data:||No||Copied to github as #:||24114|
Add a point layer
In layer styling (I live update activated though not sure it has something to do with the issue), Symbology, single symbol
At the Marker level, use the "Assistant.." to modify the size of symbols
Now select the "simple marker" level and click on the data-defined override icon (which should be yellow) near the Size option
The yellow color disappear and the data-defined effects removed from the map canvas. This happens also if you select the Size option from the Marker level.
Note however that the settings you entered in the Symbol Size dialog are still present.
I don't know if it's due to this issue but I couldn't figure out how the Assistant could be ignored later in the settings.