Dear Rhino Support Team, I hope this message finds you well. I am currently facing an issue with Grasshopper in Rhino where only the “Params” tab is visible upon launch, while all other standard tabs such as “Math”, “Sets”, “Vector”, “Surface”, etc., are missing. [Screenshot 2025-04-30 154246]

Hi Ryan - [image] Ryan_Whitby: GrasshopperLoadOneByOne does fix it but it would be great to know what the culprit is. To find that out, you’ll need to allow a single plug-in at a time and see if that triggers a problem or not. -wim

Yeah was afraid of that. Especially since UnloadGrasshopperAssembly no longer exists it means restarting rhino each time.

The plugin causing the issue was OpenNest from @Petras_Vestartas . I see there was a fairly recent update to the plugin (which is an amazing tool btw).

Never seen that :slight_smile: @wim What could cause that? @Ryan_Whitby Do you have only one version or multiple ones, including old ones? And do you have any error message in Rhino Command line?

hello, I was having the exact same problem, and when I uninstall OpenNest from my Rhino 8, it magically solved the problem. FYI @Petras_Vestartas

It is with the recent version? Can you provide more info…

Hi! Been having the same problem since versions 2.10 and 2.11. Reverting to 2.9 makes the tabs reappear.

[image] Petras_Vestartas: since everything works for my windows machines. I didn’t get any error messages. I thought OpenNest 2 didn’t work on Windows 10, while OpenNest 1 was working properly.

This is another point, this can be compiled with Windows 10 C++ SDK. Now lets try to solve the first problem.

Grasshopper Only Showing "Params" Tab – Missing Standard Tabs

Grasshopper

Petras_Vestartas May 7, 2025, 11:19am 12

And do you have any error message in Rhino Command line?
I need someone to help me to debug this, since everything works for my windows machines:

Topic		Replies	Views
Grasshopper tabs disappeared OpenNest windows	3	115	May 8, 2025
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Grasshopper Only Showing "Params" Tab – Missing Standard Tabs

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