Created attachment 125266 [details]
Screenshot

SUMMARY
[RDP] The "@" in profile name gets replaced with "%40" when put in history, which makes it unusable to log in using history. When I click on history, and replace "%40" with "@" then I can log in successfully. This is especially important if you log in to Windows using Microsoft account, you need to use your e-mail address.

STEPS TO REPRODUCE
1. Select RDP. Type IP adress, press enter, then type your user name (e-mail address).
2. End the session.
3. Click on last sessionm where now the string looks like name%40adress.com@IP instead of name@adress.com@IP.
4. Press enter or button to go to adress

OBSERVED RESULT
The session won't start. If you replace "%40" with "@" it will.

EXPECTED RESULT
Simply be able to log in using history.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Solus 4.0 Plasma
KDE Plasma Version: 5.17.5 
KDE Frameworks Version: 5.66.0
Qt Version: 5.13.2