i have posted this before but i can't remember where.
basically i have v12.3 and i am no longer to open edison with shortcuts like i used to. have tried everything and it ain't happening.
also, this drives me mad to, whenever i click on a window, say the browers if i go to another window when i comback to the window it has lost focus and i need to click the shortcut TWICE on every goddamn element. accessing the browser means i have to click on it first and it is totally annoying. i used to be able to mouse-wheel double click to access the visual plugin window, not it flickers on and off in a flash...
tings i am used to that's all. i love the app but christ it can be frustrating at times
scuse me

 

This is because 12.3 is beta. They are converting everything to vector graphics. Also, they are working on other things. Maybe it will be fixed in FL 13. I have the same issue. Are you also running any or all FL Studio shortcuts as Admin? That could be an issue of mine as well.
There are 2 issues when running in admin and not running in admin. If you run in admin you wont be able to drop samples etc from external windows. But, if you dont run in admin, some third party vst's like Omnisphere 2 wont allow you to save patches\presets. Thought I would add that if you didnt know.