Mouse Input Events become unresponsive after clicking outside of the screen

Development Programming & Scripting
1

The setup:
Left Mouse Button Input events Press/Release are connected to print string nodes.

Edit1: It turns out that setting ShowMouseCursor-> true causes this problem.

Edit2: It appears that this is a [bug from 4.12][1]

323462-mousepressnotregistering01.jpg
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The problem is:
Once the mouse is clicked outside the screen, and comes back into screen. The Left Mouse Button Press Input Event no longer responds properly to mouse clicks.

323463-mousepressnotregistering02.jpg
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Note: Adding “SetFocusToGameViewport” didn’t help

.
.
.
LogBlueprintUserMessages: [Controller_C_0] Left.Press
LogBlueprintUserMessages: [Controller_C_0] Left.Release
LogBlueprintUserMessages: [Controller_C_0] Left.Press
LogBlueprintUserMessages: [Controller_C_0] Left.Release
LogBlueprintUserMessages: [Controller_C_0] Left.Press
LogBlueprintUserMessages: [Controller_C_0] Left.Release
LogBlueprintUserMessages: [Controller_C_0] Left.Press
LogBlueprintUserMessages: [Controller_C_0] Left.Release
[Click outside of screen, then return back to screen]
LogBlueprintUserMessages: [Controller_C_0] Left.Press
LogBlueprintUserMessages: [Controller_C_0] Left.Release
LogBlueprintUserMessages: [Controller_C_0] Left.Release
LogBlueprintUserMessages: [Controller_C_0] Left.Press
LogBlueprintUserMessages: [Controller_C_0] Left.Release
LogBlueprintUserMessages: [Controller_C_0] Left.Release
LogBlueprintUserMessages: [Controller_C_0] Left.Press
LogBlueprintUserMessages: [Controller_C_0] Left.Release
LogBlueprintUserMessages: [Controller_C_0] Left.Release
LogBlueprintUserMessages: [Controller_C_0] Left.Press
LogBlueprintUserMessages: [Controller_C_0] Left.Release
LogBlueprintUserMessages: [Controller_C_0] Left.Release
LogBlueprintUserMessages: [Controller_C_0] Left.Press
LogBlueprintUserMessages: [Controller_C_0] Left.Release
LogBlueprintUserMessages: [Controller_C_0] Left.Release
.
.
.

So, I am guessing this is a bug.

2

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