Can’t uninstall or install Datasmith plugin 3DS Max

organicspline · March 30, 2022, 10:18am

I used Datasmith MaxExporter 4.26.1.msi with 3DSmax 2020. Now i want to use it with 2022 but i cant install UnrealDatasmithMaxExporter_4_27_2 cause the installer says i need the old installer. Problem there is no download in the achive, there is only the UnrealDatasmithMaxExporter_4_26_2 version but i need 4_26_1. At the moment i cant deinstall nor install anything. Please Help otherwise i have to reinstall the hole PC ;(

Fuarks · May 28, 2023, 10:31pm

Hello,I have this problem too, have you found the solution?

UE_FlavienP · May 30, 2023, 12:59pm

which version do you need to uninstall? @Fuarks

someonelsee1 · May 31, 2023, 7:46am

Hello,
If you still have the issue, try clean desinstalling Datasmith and all that is related to it with this utility program:

and do a fresh install afterwards.

EGLEN · May 7, 2024, 2:47pm

Hallo…

I have a similar problem too. Hello, I installed the updated twinmotion 2024.1 and 3ds Max 2025 on my computer. However, I’m having trouble trying to install UnrealDatasmithMaxExporter_5_4_1. I can’t install it because an older version is installed, or there is another reason. The problem is that I cannot uninstall the installed UnrealDatasmithMaxExporter_5_0_1 version using add or remove programs. In this case, I tried almost everything written in the forum, but I could not solve my problem. I need help.

UE_FlavienP · May 7, 2024, 3:02pm

Run this MSI to uninstall the 5_0_1. Then you can install the 5.4.1
https://unrealstudio.epicgames.com/UnrealDatasmithMaxExporter_5_0_1.msi

EGLEN · May 8, 2024, 11:10am

Thank you very much for your quick answer. Everything is fine. Loaded without problems.

TheTriexy · November 17, 2024, 1:14pm

Hi I have the same problem -.- but with other Version, on the left the error and on the right side are the setups i already tried

Edit: I fixed it with copy the download link and changed it to the correct version

wizzardken · May 17, 2025, 4:41am

Hello , I’m having the same issue. I need version 5.3.1 !! Please help me.

UE_FlavienP · May 19, 2025, 8:51am

https://unrealstudio.epicgames.com/UnrealDatasmithMaxExporter_5_3_1.msi

Andreas_Bjorshol · June 13, 2025, 7:28am

I have the same issue - trying to install datasmith version 5.6.0, but I need the installer for version 5.5.3 in order to do that. I can only find 5.5.4 on the website. Can you help with that as well?

Just as a side note, isn’t it strange that we need the installer for the previous version of datasmith in order to install the latest version? Especially since not all versions are stored in the archive.

UE_FlavienP · June 13, 2025, 12:43pm

Here is 5.5.3 version https://unrealstudio.epicgames.com/UnrealDatasmithMaxExporter_5_5_3.msi
and yes it is not normal the installer request the previous version of the installer.
We are looking for ressources to investigate this issue.

Andreas_Bjorshol · July 4, 2025, 10:45am

Here is 5.5.3 version https://unrealstudio.epicgames.com/UnrealDatasmithMaxExporter_5_5_3.msi
and yes it is not normal the installer request the previous version of the installer.
We are looking for ressources to investigate this issue.

Thank you for the help!

edit -
For some reason, trying to install the latest datasmith plugin now produces the error “the specified account already exists”, and the installer is cancelled. Is this a known issue to anyone else?