I did some work on version 2023.1 preview 1 and it automatically upgraded me to preview 2 and now it turns out that I can not open any file generated with preview 1

Hello, I have a serious problem and it seems incredible to me what is happening, because it is not normal that you can not revert the installation of a preview version.

I did some work on version 2023.1 preview 1 and it automatically upgraded me to preview 2 and now it turns out that I can not open any file generated with preview 1. The worst thing is that I can not recover the previous version and I am left in a computer limbo in which I am supposed to have lost a lot of work.

Is there any way to recover my files and reopen them somehow?

Thank you!

I have the same problem. Please can anyone give us a solution?

I'm curious to know what the obstacle is? I converted someone's preview 1 file to preview 2 for them but they still couldn't open it because their hardware is insufficient. What exactly is it saying when you try to convert the file?

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000000

Twinmotion_Win64_Shipping

Twinmotion_Win64_Shipping

Twinmotion_Win64_Shipping

[...]

kernel32

ntdll

Maybe I should try updating the graphics card drivers

This is the same error that I get after the application crashes.

It is not a hardware problem because I have a mega machine with over 100 gb of RAM and Nvidia P6000 graphics, ssd disks, etc..

Another thing is that I have to upgrade to new drivers ....

I updated the video card drivers but the problem still exists

However, I have noticed when working with this new version that it is plagued with bugs, because it does strange things, it does not paint the object selections and it crashes more easily. On the other hand I do not like the layout of the property tables and how they are organized, they are not configurable and can not be undocked to organize them to your liking. The interface still looks like a "toy" to me. I'm afraid they have rushed a bit in releasing this new version.

This is an error that happens once you are trying to access something that does not exist. This version is not be able to open some assets included in the scene. Nothing to do with the graphics card.

image.png

This is the crash context

CrashContext.runtime-xml (80.4 KB)

Hello everyone, same problem for me.... impossible to open projects made with 2022.2.3

This is a very big problem for current projects.

Philip of France.

Bonjour à tous, meme probleme chez moi.... impossible d'ouvrir les projet faits avec 2022.2.3

C'est un tres gros probleme pour les projets en cours.

Philippe de France.

I have experienced the same problem (exact same error code): could not open & convert existing file, could not merge existing file into new project.

This hapens every time when I try to open a 2023.1 Preview1 project. Opening and converting older 2022.2.2 files is possible.

Por cierto, ¿sabes si hay un lugar para informar de este error al soporte de Epic? Escribí un ticket a Epic pero no funcionó porque me recomendaron aquí y al final no puedo informar el problema para que puedan intentar solucionarlo u ofrecernos una solución.

Problem solved with the latest update just released. Thank you ❤️💪 🙏

Yes, this morning when I went to open Twinmotion it asked me for the update and I assumed that it would bring the solution. Then I was able to open all the files I had with the preview version 1 without problems.

Thanks for letting me know, bro!

Greetings to all!

HI, how big is your file? Because i have still the same problem, filesize is 2,7gb.

I'm very glad to hear that the hotfix for Twinmotion 2023.1 helped to resolve the crashing you had experienced converting the file from Preview 1 to Preview 2, and thank you for your feedback. I've responded to the bug report you had submitted as well, apologies for the delay.

Thank you for submitting a bug report regarding the persisting issue converting the file from Preview 1 to Preview 2 after the hotfix, I see that we have logged a report for this and the development team is actively investigating.

For others experiencing this issue, if you are encountering a crash converting a Preview 1 file to Preview 2, we've released a hotfix this past Monday to address this and some other critical issues reported. This update would replace the current Preview 2 in the launcher.

Please see the following article for more information regarding this hotfix: HotFix Twinmotion Preview2

If the problem persists converting the Preview 1 file to Preview 2 after this update, please submit a bug report using the Contact Us button on our Twinmotion Community home page.

Thank you

@Morgan Crockett​ Can you take a look at my situation.... It sounds related, but isnt working. I am pretty sure I have the update CL-2. Is there anyway to recover my work?

https://twinmotionhelp.epicgames.com/s/case/5004z00001n9HTUAA2/tm-2023-review-1-project-wont-open-in-2023-preview-2

I am in the above situation and the above case is solved, but I am not

that's my bug report​ Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000000000001b0

Twinmotion_Win64_Shipping

Twinmotion_Win64_Shipping

Twinmotion_Win64_Shipping

Twinmotion_Win64_Shipping

...

kernel32

ntdll