Hello, we often have hundred of layers in our files. Issue 1: When moving layers up and down, using the blue arrows at the top (Move Up, Move Down), the Layers dialog is extremely slow. It takes 3-4 seconds to move the layer one single Layer down. This is very frustrating. Dragging is an option,…

Hej Erik - [image] erik: It takes 3-4 seconds to move the layer one single Layer down. That takes less than a second on my systems. Can you post the output from the Rhino SystemInfo command? [image] erik: The user then has to scroll to where the actual moving is going on to continue mo…

Hej Wim, it takes one second when having a few layers. With complex layer structures and worksession files in the Layer list it takes ages. I have a very very fast system here, so it has very little to do with the system performance. To me it is a programming issue. Something in the code is doing …

Hej Erik - [image] erik: but does not work fine with 300+ layers. The file that I used to test this issue with and that is attached to the YT that I posted has 388 layers. Can you reproduce the issue with that file? Also… [image] erik: Rhino plugins that do not ship with Rhino C:\Prog…

And Wim, another issue with Layers which is bugging me a lot. When I have 300+ Layers and I’m working on something. The active layer is not necessarily visible in the Layer Dialog. Sure it is visible at the bottom of the screen. But to find it in the Dialog box can be quite hard. It can even be in…

And Wim … Another thing. When having complex layer structures + worksession “greyed out” layer structures in the Layer dialog. It quite frequently happens that the layer structure that is in the “worksession” ends up outside the actual greyed out part. This is non-destructive, but quite confusing. …

Here is combined file’s layer structure with the error occurring: [image] The layer “NYB_Muncipality Data” is actually in the Worksession file structure. And should not be active. It even accepts drawing inside it. I just tried. (( By the way. The RWS-file association is not updated after instal…

So I have to revert on the “closing and opening again resolves the error”. It does not. Layer structure error is still there after close/open.

I tried to disable “foreign” plugins (and restarted). Nothing changed. Moving layers up and down is still sluggish. (Now working in another file … 167 layers in this file.) /Erik

[image] Here as well. Clearly something that should not be possible. Two layers with the same name “TS-012” on the same layer level. And with the same stuff inside. This is a very very obvious bug.

Moving Layers up and down the list / Loosing Dialog Position

Rhino Rhino for Windows

brian (Brian Gillespie) March 17, 2026, 8:36pm 11

RH-89598 is fixed in Rhino WIP

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Moving Layers up and down the list / Loosing Dialog Position

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