JaneLovesMusic Posted Thursday at 02:11 AM Share Posted Thursday at 02:11 AM I just started randomly getting this error message when attempting to open HD Pro 2023. I have repaired and re-installed the program, re-named the old data files and done everything I can find that might help. Nothing has worked. Thought I would put this out on this forum to see if anybody has encountered it. Here's the message: "Assertion failed: A serious error occurred. Do not save the file in its current state. If you want to try saving your work, use Save As to create a new file. Please restart the program and contact Technical Support. ChiefQtApplication.cpp(267): Error #272000999 "A serious error occurred. Do not save the file in its current state. If you want to try saving your work, use Save As to create a new file. Please restart the program and contact Technical Support." 05/13/2026 07:05:39 PM Build: 24.3.0.84 Windows 64-bit Link to comment Share on other sites More sharing options...
CarrieS Posted Friday at 03:58 PM Share Posted Friday at 03:58 PM The 999 error is a generic "something weird happened" type of error that doesn't have a specific cause. It could be related to an object in the plan, geometry on how something is coming together wrong, When it happens on launch it is more likely caused by system requirements like graphics or available space. I recommend starting with updating your graphics driver (use a "clean install" or "factory reset" option which is frequently listed under a custom install setting in the driver install wizard). Chief is so dependent on the GPU that updating the graphics driver fixes a ton of stuff. Be sure to reboot after updating. Windows updates and GPU updates can work in tandem so be sure to verify Windows updates are installed as well. Link to comment Share on other sites More sharing options...
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