[SOLVED] Log-in Screen (now) Showing Kubuntu Icon for User pic

[Ceyarrecks]

Excuse me Please:
I have recently noticed that the chosen picture for my Standard User account has changed to a Kubuntu logo from the previous .jpg picture I chose.
Upon verifying the System Settings - Users, this user account show the expected picture.
I attempted to change to an arbitrarily different .bmp picture, no change, the Kubuntu logo remains.
Also of note: that the Administrator account user picture remains as it was set.
I also logged into the admin-privileged account to change said Standard User account picture, the Kubuntu logo remains.
What would cause this mysterious change?
What else can I attempt to convince Kubuntu 22.04 to display the chosen picture?

KDE Plasma Version: 5.24.6
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3
Kernel Version: 5.15.0-47-generic (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-2600 CPU @ 3.40GHz
Memory: 15.6 GiB of RAM
Graphics Processor: AMD BEIGE_GOBY

Thank you for the time taken to assist me.
HCA

[Schwarzer Kater]

Probably you will have to delete the .face and .face.icon files in you home directory:
rm .face*

If you want to keep them but "disable" them, just rename them:
mv .face .face_old && mv .face.icon .face.icon_old

PS: You don't have to do this in Konsole - you can just use Dolphin to delete or rename them if you set it to show the hidden files & folders in your home directory.

[Schwarzer Kater]

Probably you will have to delete the .face and .face.icon files in you home directory:
rm .face*

If you want to keep them but "disable" them, just rename them:
mv .face .face_old && mv .face.icon .face.icon_old

PS: You don't have to do this in Konsole - you can just use Dolphin to delete or rename them if you set it to show the hidden files & folders in your home directory.

[Ceyarrecks]

Probably you will have to delete the .face and .face.icon files in you home directory:
...

AMAZING! you ROCK!!!

opened up Dolphin, and there were the two mentioned files, with their Kubuntu circular blue/white gear!
deleted, logged out, and user pic was restored!!

Now.
the next obvious question is how did this happen to begin with?
and can it be prevented from occurring in the future?
(maybe set something to RO/no modify permissions?)

Thank you again for this assistance!

[Schwarzer Kater]

You are welcome.

[…]
the next obvious question is how did this happen to begin with?[…]

Well, afaik this is part of the Kubuntu "branding" - several Linux distributions preset the user image according to their liking.