Hi Chewy.
I’ve also still got the issue of windows not showing up. I haven’t updated to 3.1.3 though, I’m still on 3.1.2.
I was really hoping 6.5 would fix it.
My workaround is when the windows doesn’t show up, minimising it from the window menu.
You can then see the window in the dock and if you click on it, it comes to the front.
It doesn’t always happen though. Randomly during the day it will actually work as it should, but can then stop again.
Simon