Rhino Locks up if sidebar auto-collapse while popup window showing

Rhino Rhino for Windows
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1

I’m on Windows 11 with the lastest version of Rhino (8R16)
I have sidebar set to auto-collapse, but if the sidebar collapses while a popup window is showing (like background color selector), the popup window also disappears, which causes Rhino to lock up (unable to click anything, and there’d be a “ding” warning sound when i click on rhino ).
disappearing window

The only way to solve this is to close Rhino with task manager. The popup window is not hiding behind other windows, I’ve checked, and I cannot switch to the popup window using alt+tab.

2

When you get the ding sound try pressing esc. That might close to now hidden dialog.

3

nope, I tried that, hidden window doesn’t close

Also the same issue affect submenus for the left tool bar, the side bar would collapse and close the submenu while the cursor is on the submenu, this doens’t lock up rhino, but makes it impossible to explore the submenu
toofast