Hello ,
Thank you for posting in the community and sorry to hear about the troubles. This is not a common error and we would need to investigate further what might be the cause. I do have some recommendations you can try to see if it helps resolve the issue.
You can check this article out and try the troubleshooter:
https://support.microsoft.com/en-us/topic/fix-problems-that-block-programs-from-being-installed-or-removed-cca7d1b6-65a9-3d98-426b-e9f927e1eb4d
Here is an article with common errors you may encounter and recommend you follow the same steps to see if that helps resolve it.
https://twinmotionhelp.epicgames.com/s/article/Datasmith-Exporter-Plugin-Installer-Common-Errors-on-Windows-OS
Also please check this article to see if you have the right .NET Framework installed.
https://twinmotionhelp.epicgames.com/s/article/Datasmith-Exporter-Plugin-Installer-Prerequisite-on-Windows-OS
Could you contact us directly if you are still having issues by following this link:
https://twinmotionhelp.epicgames.com/s/case-community-page
Kind regards,
Vincent B.
