As a short follow up, restarting Pd makes the issue disappear. I'm moving back and forth between patch windows as expected, so it seems this is a bug where the current window gets out of sync between the core and the GUI.

On Nov 16, 2017, at 12:35 PM, Dan Wilcox <danomatika@gmail.com> wrote:

Roman, you were right in that there is weird behavior with the new Tk where it seems you need to click multiple times in order to switch window focus. I've noticed that right click on one patch window is still referring to the previous window. Clicking on the window titlebar then shifts the focus. I'm wondering if this is something we can catch in the GUI or something wrong with Tk itself.

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Dan Wilcox
@danomatika
danomatika.com
robotcowboy.com