I am using 4.4 update preview, just did some tests with UMG and noticed something.
I know UMG is marked experimental, Epic did say it’s not 100% done, and I am not using it in production, I just thought this might interest you (maybe you already know). So here goes:
I added a joystick touch interface and a widget containing some buttons and a border:
This is the widged hierarchy:
And this is how it looks in play mode:
This is running on a iPhone5. Now here is the problem:
If I move the joystick up and then, without releasing the joystick, press one of the buttons and then, while holding down the button, release the joystick, the joystick does not return to the original position, just stays there, like in the image.
Now, the white square is a border, and as you know, the border can also have events for pressed and released, kinda like a button. But with the border, the problem described above, does not replicate.
Hope this helps, I really like UMG so far.