I guess there is a new type of Bug iin Alteryx 11.7
Sometimes when more than 1 instance is open I cannot reach to the other Alteryx screen in any case.
I check from Taskman and it doesn't say it's not responding.
Non responsive but running Alteryx instance
When you try to close the screen off It shows you a Save As screen that you cannot OK or Cancel or anything, a non responsive save screen. In this time span Alteryx is still running and is not in "not responding" status.
Buggy screen 2
Here is the Alteryx version we are running...
Version