coredumps core.csd-background from: "gsettings set org.cinnamon.desktop.background picture-uri..."

Distribution

Mint 22.3

Package version

6.6.7

Graphics hardware in use

Intel Corporation Raptor Lake-S GT1 [UHD Graphics 770]

Frequency

Always

Bug description

A bash script with this line, called by crom 15 min after each equal hour makes one, sometimes two coredumps.
Problem introduced end of October, start of November 2025. Did not make any problems for more than 3 years before.
The line:
gsettings set org.cinnamon.desktop.background picture-uri "" && gsettings set org.cinnamon.desktop.background picture-uri "file://$wdir/back.tif"
(Background is changed to a new picture of the moon)
This works, but coredump(s) is/are produced.

The second coredump my be generated if screensaver is running in the time the script is started.

Problem occurs also by starting the script trough a starter.

Steps to reproduce

Find coredumps.zip here:
https://eu.mydrive.ch/shares/94593/b4995dd0187633e10abd75a3b80efe70/browse

Environment to run script.zip

Expected behavior

Change background picture, WITHOUT coredumps.

Additional information

No response

Start by reproducing the issue with the supplied Environment to run script.zip and the bash line using gsettings, both normally and while the screensaver is running. Inspect the resulting coredumps from coredumps.zip to identify the Cinnamon component involved. Done means changing the background through this command no longer produces coredumps.