Bug #111239 MySQL Workbench crashes when opening a saved server
Submitted: 1 Jun 8:39 Modified: 27 Jun 10:01
Reporter: Andrew Dixon Email Updates:
Status: Unsupported Impact on me:
Category:MySQL Workbench Severity:S2 (Serious)
Version:8.0.33 CE build 2947366 (64 bit) OS:Windows (22H2)
Assigned to: MySQL Verification Team CPU Architecture:Any
Tags: workbench

[1 Jun 8:39] Andrew Dixon
Upon opening a saved connection created in an older version of Workbench, 

MySQL Workbench has encountered a problem
External component has thrown an exception

Other saved connections are unaffected

How to repeat:
Open MySQL workbench, double click saved connection
[5 Jun 11:51] MySQL Verification Team
Unsupported server version according WB.log : MySQL Community Server (GPL) version 5.6.15-log
[5 Jun 12:01] Andrew Dixon
Unsupported version isn't an issue - 2 of my other Saved servers are on the same version and work fine
[27 Jun 10:01] Andrew Dixon
I finally tracked down the problem, so hopefully might help someone:

The issue was in the server_instances.xml file found in:

There were duplicate entries for the server that did not work - I deleted the oldest entry for that server, saved and then reopened Workbench - All OK