After open Users and Groups, always get "System program problem detected" warning, no details

Distribution

Ubuntu Cinnamon 24.04.1 LTS

Package version

6.0.4

Graphics hardware in use

Radeon Picasso/Raven 2

Frequency

Always

Bug description

After a fresh install of Ubuntu Cinnamon 24.04 I always encounter this error, no matter what hardware I install it on.

If at any time I open the "Users and Groups" tool, there is a delay in opening the app. Once it does open, it seems a bit sluggish and unresponsive for a brief period. After that, everything seems fine until a message of "System Program Problem Detected - Do you want to report the problem now?" appears.

Using the report problem button seems to do nothing. I can't figure out where the error is logged. It always comes back, with every reboot, and sometimes hours/days later if the system isn't rebooted.

It only does this if I had launched "Users and Groups" for the first time. If I don't, I never encounter the error. If I do, it always returns, and on any system I install it on, across a variety of hardware and VMs, and regardless of usernames or group names I do or don't create.

I've encountered this since the launch of 24.04, and it hasn't gone away with patching.

Any ideas?

Steps to reproduce

1. Fresh install of Ubuntu Cinnamon 24.04.x
2. Launch Users and Groups - do/don't do anything, just opening it seems to cause it
3. Close the app
4. Wait an undetermined amount of time, or launch a system config app such as Themes, Displays, etc.
5. "System program problem detected" appears - Report Problem button does nothing

Expected behavior

App should work as normal, not display a mysterious generic message

Additional information

I believe this is due to the Users and Groups app because I realized on a personal system with only my user account, I never had encountered the error, but when installing it for other folks that had multiple users/family accounts, it was always occurring.

Since then, I'm convinced it's the Users and Groups app, as fresh installs today with a newly downloaded ISO does it on both a VM (VirtualBox) and a laptop, but only after opening that app.

Sure, I can use the CLI to add users/groups, but I love Cinnamon for newbies and non-technical folks.

Reproduce the issue by opening the Users and Groups tool on Ubuntu Cinnamon 24.04.x, then wait for the generic system-program warning as described. Investigate the available error reports or logs to identify what the tool triggers; done means the cause is understood and opening the app no longer produces the warning.