Too many accounts appear on the side bar

[4lk]

Describe the bug
Currently I see several accounts and I am the only one using this computer. I am currently logged in as "Undefined" and bellow this I see my account name twice.

To Reproduce (if applicable)
Steps to reproduce the behavior:

1. Go to 'Accounts' on the sidebar
2. Look at how many accounts appear for a single user (ignore the "Guest" one)

Expected behavior
I would expect to have my account name once and to be logged in through it, not as "Undefined".

Screenshots

Versions
Linux Mint 21.3 Cinnamon - Version 6.0.4
Browser: 6.9.3447.46 (Stable channel) stable (64-bit)
Photon version: 1.31.4

[Xyphyn]

You can remove some accounts by going to the accounts page > 3 dots > log out.

[4lk]

I have done this and they re-appear. Also some times the option to log out is not present (I mean the one where the 3 dots are), or it logs me out completely.