Thank you for your great piece of software I have been using for quite a while now.
I have encountered a strange behaviour which might be a bug so I wanted to forward it to you.
I run a dual monitor setup and experimented with the 'Monitor Hiding' feature.
As the prevention of maximised applications getting partly dimmed is not yet resolved with 9.7.1 as far as I have read in the board here, another setting is detaining me from using this feature. If I set the opacity to 100 %, so that one of the screens goes completely blank if unused, I cannot 'reactivate' it by moving the mouse to any part of the screen.
If I move the slider down to 99 % if all works fine, 100 % is maybe a one time switch (50:50) to the 2nd monitor but no way to get an image of the 1st again with the mouse clicking at any point.
I hope you can reproduce this occurence and probably fix it in a future update.
We are aware of this issue, and have it on our list to fix up. I've added your vote to it, so we'll be sure to let you know if we have any news on it in the future.
This issue should be fixed up in the latest beta, available here:https://www.displayfusion.com/Download/Beta. Please let me know if you still run into any trouble after updating.