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Joined: Mon Jul 31, 2017 3:25 pm

Crashing issues, with Windows 10, 21H1

Sat Jul 03, 2021 12:49 pm

Recently did the latest 21H1 update, along with updating my AMD drivers to 20.6.2 - I'm having crashing issues with simplify just closing with no error messages, I tried rolling back to the 20.6.1 AMD driver, no change, so I'm wondering if it's the latest windows updates, anyone else having problems?

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Joined: Wed Jun 20, 2018 12:45 pm

Re: Crashing issues, with Windows 10, 21H1

Tue Jul 06, 2021 10:37 am

Have you tried exporting your profiles with File > Export FFF Profile and then using Help > Reset All Settings? This will revert Simplify3D to its stock configuration.

After this is done you can import your saved profiles with File > Import FFF Profile(s).
"A bird does not sing because it has an answer. It sings because it has a song."

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Joined: Tue Mar 10, 2015 4:09 pm

Re: Crashing issues, with Windows 10, 21H1

Sat Jul 10, 2021 8:47 pm

Not sure if this is connected with the reported issue here....but there have been reports of issues printing to Sillhouette Cameo 2D cutting devices since a recent update to Windows. Microsoft have acknowledged the issue and may be working on a quick fix to the fix!

I've had problems wring to my Cameo....and removing the updates KB5003537 and KB5004945, tthings started working again. I have no issue with S3D...but that may not be an indication the windows fixes are not responsible.

Update: The fix with the issue is KB5004945, and it was patched on the 6th July 2021
Doug Kightley
Volunteer at the National Tramway Museum
Railway modeller and webmaster at

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