MySQL Bugs: #43933: Get an "Error opening plugin" message when trying to edit table

Bug #43933	Get an "Error opening plugin" message when trying to edit table
Submitted:	28 Mar 2009 19:19	Modified:	29 Mar 2009 8:55
Reporter:	Raymond Plante	Email Updates:
Status:	Duplicate	Impact on me:	None
Category:	MySQL Workbench	Severity:	S2 (Serious)
Version:	5.1.9 beta revision 5142	OS:	MacOS (OS X version 10.5.6)
Assigned to:		CPU Architecture:	Any

Description:
If I start workbench and open a .mwb file and try to edit a table I get the following error:

Error Opening Plugin
The plugin db.mysql.editors.mwbplugin does not contain the published object DbMysqlTableEditor

After the error message, the table editor box does not open at the bottom of the workspace.

If I then close the file, create a new diagram, add a table, and try to edit the new table I get the same error.

However if I start workbench and then first select add diagram, the insert a table, then edit the table the correct edit window appears at the bottom with no error message.  If I then close this new diagram and open an existing .mwb file without restarting workbench, I can edit tables fine without the error message.

How to repeat:
Start Workbench.
Open existing .mwb file.
Double click a table--> this causes error.

Looks like a duplicate of Bug #43863. Please, check.