Undo very slow after last Update

Since the last update the Undo command is very slow. Is there a solution available for this issue?

Hi Fedja -

In a new file here, I create a box and then undo. This appears to be instant here on my 2015 MacBook Air. Is that same procedure slow on your end?
-wim

Thanks for your reply. I have created a new document and undo works normal again. Looks like my original file was the issue. I have also pressed ‘save small’ and know it seems to work.

After working again for a longer time on the file the problem has appeared again. :roll_eyes:

Hi Fedja -
Can you post your 3dm file and instructions on how to reproduce the slowness?
Also, please run the Rhino SystemInfo command and copy-paste the result here.
-wim

Hi Wim, unfortunately I can’t share the file as it is confidential. But in the meantime I have just copied the surfaces and pasted them into a new clean Rhino file. Now it works fine again :slight_smile: