Bug #97752 Index was out of range
Submitted: 22 Nov 2019 14:14 Modified: 29 Nov 2019 7:28
Reporter: Mark Gordijn Email Updates:
Status: Duplicate Impact on me:
None 
Category:MySQL Workbench Severity:S3 (Non-critical)
Version:8.0.18 OS:Windows (Windows 10)
Assigned to: CPU Architecture:Any (64bit)

[22 Nov 2019 14:14] Mark Gordijn 
Description:
After executing a query the program hangs, eventually a dialog box appears with the following information:

MySQL Workbench has encountered a problem

Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index

How to repeat:
Open MySQL Workbench
Right click on a table and select "Select Rows"
[22 Nov 2019 14:18] Mark Gordijn 
It is not possible to execute other queries after this or close the workbench. The only way is to use the task manager to force the workbench to close and then start it again and hope that the problem does not occur.

I have run the same queries on A VM with Ubuntu and have not had the same problems.
[22 Nov 2019 15:31] MySQL Verification Team 
Thank you for the bug report. Which server version are you using?.
[25 Nov 2019 7:48] Mark Gordijn 
I am using server version 5.17.19
[29 Nov 2019 7:28] MySQL Verification Team 
Hello Mark Gordijn,

Thank you for the report.
IMHO this is duplicate of Bug #97444, please see the Bug #97444

Regards,
Ashwini Patil