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1

Assertion Failure error in 29.9.14 Build

Community Expert ,
Aug 19, 2025 Aug 19, 2025

I'm seeing an issue with the Windows 29.9.14 build when it is first launched. An error box with the title "Assertion failure. Do you want to Debug" pops up with the following message:

 

AI exception from ErrorThrower declared in file: D:\J\ws\ilst_main\app\Suites\FxIllustratorDiagnosysPrefs.cpp line: 117

 

The first time I saw the error the 29.9.14 beta wouldn't launch regardless if I clicked the "yes" or "no" buttons. After rebooting and clicking the "no" choice Illustrator would finish launching.

 

It's a strange issue, considering I didn't have any extra drives attached at the time, just the boot disc drive in the computer (drive C).

Bug Unresolved
TOPICS
Performance , Release Notes
176
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1 Comment
New Here ,
Aug 20, 2025 Aug 20, 2025
LATEST

Started having the exact same problem today. Tried uninstalling and reinstalling Illustrator and it is still not working. 

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