Layer with same name as in previous project get path from the previous layer in the qgs-file

[norrasverige]

What is the bug or the crash?

If I open a qqz-file with a shape file layer named for example "test". If I then click "New project" and add another shape file layer called "test" from another map, it will look ok as long as I have the project opened. When I save and close QGIS and open the project again, it will be the layer from the first qgz-file that is shown. I digged a bit deeper and found that in the qgs-file, the path in the source is correct under "layer-tree-layer", but has the path from the other layer in "datasource" under "MapLayer".

Steps to reproduce the issue

open QGIS
Create a shape file (polygon) named test.shp in folder test1
draw a square.
save the layer

Create a second shape file (polygon) named test.shp in folder test2
draw a triangle
save the layer

close QGIS
Open QGIS
import test.shp from test1 folder.
Save the QGIS project in test1 folder, name it test1.qgz
close QGIS

Open test1.qgz from File Explorer by double clicking it.
Create a new project in QGIS (Project --> New)
Add test.shp from test2 folder
Save the QGIS project in test2 folder, name it test2.qgz
close QGIS

Open test2.qgz from File Explorer by double clicking it.
Now you will see test.shp from test1 folder instead of the test.shp layer in test2 folder...

Versions

same problem in both 3.34.0 and 3.38.3-1

Supported QGIS version

• I'm running a supported QGIS version according to the roadmap.

New profile

• I tried with a new QGIS profile

Additional context

Tested on 3 different computers, but same issue on all.

[damat46]

I have the same bug on my projects for a few weeks now. Was on 3.38.1, tried to update on 3.38.3 with same results. I was going to try on 3.34 when I saw you post.

[damat46]

Here is the workaround that I use.
I reload the local shape file on every project opening with the macro:

from qgis.core import QgsProject

def openProject():
project = QgsProject.instance()
layer = project.mapLayersByName(layerName)[0]
shpFileName = os.path.basename(layer.source())
new_source = os.path.join(projet.homePath(), shpFileName)
layer.setDataSource(new_source, layerName, 'ogr')
layer.triggerRepaint()

[norrasverige]

Here is the workaround that I use. I reload the local shape file on every project opening with the macro:

from qgis.core import QgsProject

def openProject(): project = QgsProject.instance() layer = project.mapLayersByName(layerName)[0] shpFileName = os.path.basename(layer.source()) new_source = os.path.join(projet.homePath(), shpFileName) layer.setDataSource(new_source, layerName, 'ogr') layer.triggerRepaint()

Thanks a lot! That worked 👍

[Oisin-JK]

I also experience this bug.