Bug report #16965
Projection configuration not properly migrated between QGIS 2.18x and 3.x
|Affected QGIS version:||master||Regression?:||Yes|
|Operating System:||Easy fix?:||No|
|Pull Request or Patch supplied:||No||Resolution:|
|Crashes QGIS or corrupts data:||No||Copied to github as #:||24864|
If one creates a project in 2.18.x that have a projection assigned (e.g. EPSG:2056) by loading a layer that has an assigned EPSG information, and one loads the same project, the project loads with "no projection" - and a result symbology rules with scale, etc. can't be properly evaluated.
Sample project with empty memory table attached.