Rhino 8 is already on its x.4 build, and still the Layer panel is broken (at least on Mac).
It happens very often in my working sessions that at some point Rhino doesn’t allow me to rename my layers anymore, the only two-clicks action that works is making the selected layer the current one.
I have to reset my window Layout, or hide/and show again the Layer panel to make it work again.
Weird. I haven’t seen that. But I also haven’t run Rhino for a longer modeling session for a couple weeks. So the slow click pause click to rename just stops working?
Does it start working again if you toggle the sidebar by clicking the button in the lower right corner of the Rhino window?