Mouse position not updating when holding left mouse button?

Hi all,

In all previous engine versions this hasn’t been a problem, (I moved straight from 4.9 to 4.11) it’s only when updating to 4.11 that this has now become a problem for me. When holding the Left Mouse button and dragging the mouse around, the engine doesn’t seem to update the mouse position at all, instead it completely locks it in place where I originally held the Left Mouse Button.

Is there a method to release this lock or is this a possible bug?

The problem I’m currently having is that I’m trying to drag actors around the level but now I’m unable to do so due to the mouse position not updating when holding down the Left Mouse Button.


It works for me with my selection box I implemented with UE4.10
. Maybe some event handling have been changed?