MySQL Bugs: #105945: cannot connect to any DB "Paramater is not valid."

Bug #105945	cannot connect to any DB "Paramater is not valid."
Submitted:	21 Dec 2021 0:08	Modified:	22 Dec 2021 20:51
Reporter:	Andrew Thomas	Email Updates:
Status:	Duplicate	Impact on me:	None
Category:	MySQL Workbench	Severity:	S3 (Non-critical)
Version:	0.0.27 build 1228725 CE (64 bits)	OS:	Windows
Assigned to:		CPU Architecture:	Any

Description:
When loading up mysql workbench - there is initially an error saying the sidebar image cannot be loaded.

After the application loads - when double clicking a saved connection that did previously work (and entering the password when prompted) - it pops up the 'Opening SQL Editor - please stand by...' window before displaying a new pop-up:

"Parameter is not valid." and the application stops responding when closing the error pop-up message. I've tried several connections they previously worked - and also new connections.

The sidebar on the right is also greyed out and has the same: "Parameter is not valid." error when interacting with the greyed out icons

How to repeat:
Open MySQL workbench (to get the first error message)
create a new connection and enter password (to get the second message)

Hello Andrew Thomas,

Thank you for the bug report.
Imho this is duplicate of Bug #99285, please see Bug #99285 and follow the suggested fix.

Regards,
Ashwini Patil

Fix -> 

windows -> control panel -> uninstall -> mysql workbench->repair