●○○○ — Not much; I'm just letting you know about it.
Steps causing the bug to occur:
Open an existing Vuo patch
After loading the zoom to fit button is greyed out
Hitting Command+A to select all doesn't enable the zoom to fit button
The zoom to fit button only starts working after clicking a node
Have you found a workaround?:
You need to click a node after loading a patch and then click on the canvas/background. Afterwards you do this you can hit the zoom to fit button to get all nodes in view. If I remember correctly in Vuo 1.2.8 you could hit the zoom to fit button straight after loading an existing patch to get all nodes in view.