# Datasmith - Reloading File crashes - Revit 2024 \> TM 2024.1

**URL:** <https://forums.unrealengine.com/t/datasmith-reloading-file-crashes-revit-2024-tm-2024-1/1909447>\
**Category:** Pipeline & Plugins\
**Tags:** Datasmith, Revit, launcher-crash, twinmotion\
**Created:** [June 19, 2024, 8:59pm UTC](https://forums.unrealengine.com/t/datasmith-reloading-file-crashes-revit-2024-tm-2024-1/1909447 "2024-06-19T20:59:39Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![KPaxx\_10](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/kpaxx_10/32/950553_2.png) [@KPaxx\_10](https://forums.unrealengine.com/u/KPaxx_10)\
**Post date:** [June 19, 2024, 8:59pm UTC](https://forums.unrealengine.com/t/datasmith-reloading-file-crashes-revit-2024-tm-2024-1/1909447/1 "2024-06-19T20:59:39Z")

</div>

So I had already started a project in Twinmotion 2024. I was also working in Revit 2024, so a livelink isn’t an available option (as you need _2025_ for that version.) The next best thing was to Export via Datasmith. Worked like a charm. Was able to import and work on the model just fine. Everything was smooth going. File is now up to a gig. Made renderings just fine, saved often w/o any issues.

Came back the next day (today) and have to make some changes in the Revit model. I’m anticipating the workflow to be:  
Revit \> Export a new Datasmith file \> Open Twinmotion & load original TM file \> go to Import, select the uDatasmith file \>click on the ‘reload’ button

I do all of that, w/o issue. While loading TM, there was an update waiting. Installed that, restarted and…

_CRASH_.

I’m given the following error (see below)

What gives? I have tried other exports and other versions, and always the initial import works fine - and when I go to _reload_ the updated uDatasmith file - it crashes. Doesn’t matter the version I’m working in. That kind of doesn’t allow one to work & be productive, does it?

Sure, I can import the new model, then delete the old one, then RE-APPLY ALL my Materials… but where is the FUN in _THAT_??  
_“That’s not how this works…That’s not how ANY of this is supposed to Work!”_

Help? Am I missing a button somewhere?

Computer: AMD Ryzen 9 5950X 16-Core Processor  
RAM: 64 GB / Windows 64  
VIDEO: Nvidia RTX 3090 w/ 24 gb vramb

Error code(s):

```auto
LoginId: (bunch of numbers, not sharing)
EpicAccountId: (more bunch of numbers, still not sharing)

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION 0x00000a0fd217a000

TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
TwinmotionCookedEditor_Win64_Shipping
kernel32
ntdll

```

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<div class="post-metadata">

**Author:** ![Nieuw\_Architects](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Nieuw\_Architects](https://forums.unrealengine.com/u/Nieuw_Architects)\
**Post date:** [July 1, 2024, 7:39am UTC](https://forums.unrealengine.com/t/datasmith-reloading-file-crashes-revit-2024-tm-2024-1/1909447/2 "2024-07-01T07:39:11Z")

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I’m having the exact same issue. With direct link and datasmith. TM has ebcome unuseable. Really dissapointing.

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<div class="post-metadata">

**Author:** ![KPaxx\_10](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/kpaxx_10/32/950553_2.png) [@KPaxx\_10](https://forums.unrealengine.com/u/KPaxx_10)\
**Post date:** [July 2, 2024, 1:11pm UTC](https://forums.unrealengine.com/t/datasmith-reloading-file-crashes-revit-2024-tm-2024-1/1909447/3 "2024-07-02T13:11:52Z")

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UPDATE July 1, 2024 -  
I wanted to let you know that there was a recent update, which I installed, and apparently this has resolved this issue. I have been able to Export new Datasmith files (overwriting the existing one) and in TM, reload the DS file. I have been able to do this 4 times now, without incident.

I’m still cringing a little as the progress bar gets to the end - waiting for something bad to happen - but… it doesn’t crash and am able to keep working.

Thanks Devs. !!

(PS - Now I have Cars in my Trees. Literally up 30’ in the air. 😮 I had used the Layout\> Spacing tool for cars, but… somehow… they’re now up in the trees. I’ll make a separate post. )

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<div class="post-metadata">

**Author:** ![slaflash](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/slaflash/32/983824_2.png) [@slaflash](https://forums.unrealengine.com/u/slaflash)\
**Post date:** [July 8, 2024, 3:51pm UTC](https://forums.unrealengine.com/t/datasmith-reloading-file-crashes-revit-2024-tm-2024-1/1909447/4 "2024-07-08T15:51:43Z")

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Where was the location for the update installation? I checked autodesk access but there is no new version available… Running into the exact same issue you mentioned.
