Bug #120006 Workbench crashes with assertion failed on running queries
Submitted: 8 Mar 14:03
Reporter: Dagh Bunnstad Email Updates:
Status: Open Impact on me:
None 
Category:MySQL Workbench Severity:S2 (Serious)
Version:8.0.38 OS:Windows (Windows 11 Pro 25H2 26200.7462)
Assigned to: CPU Architecture:x86 (11th Gen Intel(R) Core(TM) i7-11700K @ 3.60GHz (3.60 GHz))

[8 Mar 14:03] Dagh Bunnstad 
Description:
Workbench crashes with assertion error when executing queries.
This error has been around for years by now, how about you check it out?

Related to 113459 but no-one is responding there.

Workspace log shows query was executed:
[75, 14:34:22] update ...: 182 row(s) affected
Rows matched: 182  Changed: 182  Warnings: 0

wb.log contains nothing of importance at crash.

Error is:

---------------------------
Microsoft Visual C++ Runtime Library
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Assertion failed!

Program: ...Files\MySQL\MySQL Workbench 8.0 CE\wbpublic.be.dll
File: C:\build\sb_1-15882819-1718583859.9...\forced_...urn.hpp
Line: 38

Expression: false

For information on how your program can cause an assertion
failure, see the Visual C++ documentation on asserts

(Press Retry to debug the application - JIT must be enabled)
---------------------------
Abort   Retry   Ignore   
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How to repeat:
Intermittent, if anything is to go by it's caused by having Workbench open for a long time and making a query, possibly after having lost connection to the server. At which point the query will be executed (can be seen if output window is open, and changes will persist), but crashes immediately after that, if it was a select query, no data is displayed in GUI.

Suggested fix:
Fix the (cause of the) assertion error.