[Oleksandr Kramer]

This issue is well known among 3ds Max users. During rendering, especially when batch processing or generating previews, 3ds Max tends to steal window focus, which disrupts parallel work in other applications. This has been discussed on forums, particularly on the Chaos Corona Forum, where users noted that even with the VFB (Virtual Frame Buffer) disabled, the render engine can still trigger popup windows that capture focus.
https://forum.corona-renderer.com/index.php?topic=18582.0

Additionally, this issue has also been discussed on the Autodesk forums, where users looked for ways to prevent 3ds Max from stealing focus when it starts.
https://forums.autodesk.com/t5/3ds-max-forum/prevent-3ds-max-from-stealing-focus-when-starting-up/td-p/9063648

[Oleksandr Kramer]

You can assign one category to all materials.

[Oleksandr Kramer]

This bug is resolved in version 1.15
Thanks for feedback

[Oleksandr Kramer]

Ok. I found the problem. It will be simpler, if I know version of 3ds max. 3ds Max 2021 has a bug, with optional parameters in the maxscript.
I’ll post the update soon.

[Oleksandr Kramer]

Check for conflicts with other scripts – close 3ds max and rename the ENU directory.
Install Project Manager and add the script from the local drive.

[Oleksandr Kramer]

Try to move the script to local drive

[Oleksandr Kramer]

Hello
Check if you used the latest version.
Try to download and replace this file.
If the problem still exists, restart the computer.
There is definitely no such bug in the script, so the problem is most likely with the garbage collector in 3d max.
Rebooting should help. Also installing or reinstalling the latest service packs and updates.

[Oleksandr Kramer]

On the Preference’s dialog, you can specify a relative or absolute path to the next proxies

[Oleksandr Kramer]

This issue is fixed in version 3.38
You can download the latest version from the dashboard.
Auto-updater will be triggered in a few days if there’s no critical issue found.
Thanks for your feedback.

[Oleksandr Kramer]

Hello
I hope the API will be more useful for you
Check the example script “…\Kstudio\ProjectManager_3\presets\API examples\Manage Categories.ms”
API provides the methods  GetCategories/AddCategory/AssignCategory/

[Oleksandr Kramer]

This behavior may indicate a problem with the settings. Most likely, some settings are corrupted.
Try close 3d max, rename the Project Manager folder and install the plugin. (%localappdata%\Autodesk\3dsMax\2025 – 64bit\ENU\scripts\Kstudio\ProjectManager_3)
Try open the plugin. There should be no flickering.
Copy the necessary settings from the old folder one by one, checking each time whether the problem with loading the plugin has returned. This will help find the problematic settings. Before copying the old settings, it is better to reload 3d max

[Oleksandr Kramer]

When exactly do you receive this message?

[Oleksandr Kramer]

Please generate the support request.
You can find this option in the main 3ds max menu “Project Manager” ==>> Create Support Request.

[Oleksandr Kramer]

As I understand it, the issue occurs in scripts where you use the Project Manager API?

Please send them to support@3d-kstudio.com.

I will review them and either fix them or provide recommendations on how to make them compatible with the latest plugin versions.

[Oleksandr Kramer]

You’re very welcome!