"Directions from Points 1 Layer" cant store Layer_ID field

[wmeinolf]

Here's what I did

Since quite a while I use "Directions from Points 1 Layer" in a qgis model. Recently, perhaps asince 3.16 Upgrade, the model does not work anymore. Today I tested "Directions from Points 1 Layer" directly started from processsing toolbox on a Layer with 2 points.

Here's what I got

The output layer, where I expext the route is created horever it's empty. I get the following protocol:

QGIS-Version: 3.16.0-Hannover
QGIS-Codeversion: 43b64b13f3
Qt-Version: 5.11.2
GDAL-Version: 3.1.4
GEOS-Version: 3.8.1-CAPI-1.13.3
PROJ-Version: Rel. 6.3.2, May 1st, 2020
Verarbeite Algorithmus…
Algorithmus Directions From Points 1 Layer startet…
Eingabeparameter:
{ 'INPUT_LAYER_FIELD' : 'fid', 'INPUT_OPTIMIZE' : False, 'INPUT_POINT_LAYER' : 'C:/Users/WMeinolf/QGIS Root/temp/CLA Temp.gpkg|layername=zusammengeführt', 'INPUT_PREFERENCE' : 0, 'INPUT_PROFILE' : 0, 'INPUT_PROVIDER' : 0, 'OUTPUT' : 'TEMPORARY_OUTPUT' }

Objekt konnten nicht in Output_Layer_f2abb624_05f4_47f1_8cb8_fee838cb534d geschrieben werden: Konnte Attribut "fid" nicht speichern: Wert "" ist keine Zahl
Ausführung nach 0.19 Sekunden abgeschlossen
Ergebnisse:
{'OUTPUT': 'Output_Layer_f2abb624_05f4_47f1_8cb8_fee838cb534d'}

Lade Ergebnis Layer
Algorithmus 'Directions From Points 1 Layer' beendet

It states, that Attribute 2fid" couls not be stored as the value "" is no number. I tries various attribute types including to store the layer in GPKG to generate FID. Nothing helped. What do I wrong?

Here's what I was expecting

Layer with route between the 2 points of the layer as I got in the past.

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Here's what I think could be improved

Sorry, I cant contribute here.