# Unknown error loading model in Preform since 0.9 update
**URL:** https://forum.formlabs.com/t/unknown-error-loading-model-in-preform-since-0-9-update/500
**Category:** Support & Troubleshooting
**Created:** [September 20, 2013, 7:47am UTC](https://forum.formlabs.com/t/unknown-error-loading-model-in-preform-since-0-9-update/500 "2013-09-20T07:47:18Z")
**Posts on this page:** 11
**Page:** 1
### Author:  [@ChristopheBriss](https://forum.formlabs.com/u/ChristopheBriss)
#### Post date: [September 20, 2013, 7:47am UTC](https://forum.formlabs.com/t/unknown-error-loading-model-in-preform-since-0-9-update/500/1 "2013-09-20T07:47:18Z")
Hello,
I’m unable to load my models since I updated Preform. The same files used to work with previous versions (at least in the soft, I’m still waiting for the printer). All are created from rhino 3D.
Does anyone occurred the same problems?
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### Author:  [@ParkerPorfilio](https://forum.formlabs.com/u/ParkerPorfilio)
#### Post date: [September 23, 2013, 3:04pm UTC](https://forum.formlabs.com/t/unknown-error-loading-model-in-preform-since-0-9-update/500/2 "2013-09-23T15:04:39Z")
Hi Christophe, could you share the models you’re unable to load, either by opening a support ticket or by attaching them to a comment in this forum? Also, could you describe what happens when you try to load them (does the software crash, is there an error message) and tell us what platform (mac, windows) you’re running on?
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### Author:  [@ChristopheBriss](https://forum.formlabs.com/u/ChristopheBriss)
#### Post date: [September 23, 2013, 3:14pm UTC](https://forum.formlabs.com/t/unknown-error-loading-model-in-preform-since-0-9-update/500/3 "2013-09-23T15:14:21Z")
Hi Parker,
Thanks for you interest. Here is one of the files, and a screen shot of the error message. I’m running Preform 0.9 on a mac, and the stl has been generated with Rhino 5 mac. Rhino 5 mac is still a beta version, it could be why my files don’t work. But as I wrote, the very same files used to load perfectly with the previous preform…
Thank you
[Bague\_Artichaud.stl](https://support.formlabs.com/attachments/token/mlgiqc7tk9fq28o/?name=Bague+Artichaud.stl)
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### Author:  [@ChristopheBriss](https://forum.formlabs.com/u/ChristopheBriss)
#### Post date: [September 23, 2013, 3:19pm UTC](https://forum.formlabs.com/t/unknown-error-loading-model-in-preform-since-0-9-update/500/4 "2013-09-23T15:19:46Z")
Just saw on the blog, McQuarrie seems to have exactly the same problem.
[http://formlabs.com/blogs/blog/9211137-software-update-preform-0-9-0#comments](http://formlabs.com/blogs/blog/9211137-software-update-preform-0-9-0#comments)
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### Author:  [@MattKeeter](https://forum.formlabs.com/u/MattKeeter)
#### Post date: [September 23, 2013, 3:29pm UTC](https://forum.formlabs.com/t/unknown-error-loading-model-in-preform-since-0-9-update/500/5 "2013-09-23T15:29:52Z")
Thanks – we’ll check this out.
(Parker is also a Formlabs employee, though for some reason he doesn’t have the label).
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### Author:  [@ChristopheBriss](https://forum.formlabs.com/u/ChristopheBriss)
#### Post date: [September 23, 2013, 3:31pm UTC](https://forum.formlabs.com/t/unknown-error-loading-model-in-preform-since-0-9-update/500/6 "2013-09-23T15:31:02Z")
thanks!
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### Author:  [@ChristopheBriss](https://forum.formlabs.com/u/ChristopheBriss)
#### Post date: [September 26, 2013, 8:14am UTC](https://forum.formlabs.com/t/unknown-error-loading-model-in-preform-since-0-9-update/500/7 "2013-09-26T08:14:24Z")
Hello, I just reinstalled preform, and everything is working again! Nice day
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### Author:  [@CornGolem](https://forum.formlabs.com/u/CornGolem)
#### Post date: [September 29, 2013, 11:20pm UTC](https://forum.formlabs.com/t/unknown-error-loading-model-in-preform-since-0-9-update/500/8 "2013-09-29T23:20:13Z")
Same problem. Happens with every STL file. Deleted all preform related files but that didn’t fix the issue.
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### Author:  [@JoryB](https://forum.formlabs.com/u/JoryB)
#### Post date: [October 4, 2013, 12:55pm UTC](https://forum.formlabs.com/t/unknown-error-loading-model-in-preform-since-0-9-update/500/9 "2013-10-04T12:55:40Z")
Corn,
We have received your request through our ticketing system. Our software team is evaluating and will followup!
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### Author:  [@CornGolem](https://forum.formlabs.com/u/CornGolem)
#### Post date: [November 5, 2013, 9:04pm UTC](https://forum.formlabs.com/t/unknown-error-loading-model-in-preform-since-0-9-update/500/10 "2013-11-05T21:04:57Z")
Same thing with 0.9.11. Good thing that I didn’t buy the printer and don’t need to print when it’s not working, or I would be infuriated.
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### Author:  [@SamJ](https://forum.formlabs.com/u/SamJ)
#### Post date: [November 11, 2013, 6:39pm UTC](https://forum.formlabs.com/t/unknown-error-loading-model-in-preform-since-0-9-update/500/11 "2013-11-11T18:39:53Z")
Have you opened a support ticket with us, Corn? We’d be really interested in trying to resolve the issues you’re seeing.