No player movement with keyboard input

In every game I’m playing that uses the Unreal Engine the character does not move with keyboard input. Controller input works fine, jumping works, mouse also. Happens only on Windows 10 and as far as I know only with UE3.
How can I fix that?

Game reacts on keyboard input in general, you can also bind a new or the same key in options.

I know this is actually a developer site but I didn’t know where to go since this bug isn’t game specific and obviously related to UE and I couldn’t find any working solutions on the internet.

Thanks in advance.

Edit:
Also happens when installed and started without controller connected.
It’s 100% not a controller issue.
All those games switch automatically between devices, you can even use controller and mouse at the same time.

Some games will automatically detect a controller. Perhaps you have it plugged in and it takes priority as the input device. You should be able to switch the input device in the game options.

Alternatively, unplug the controller and restart the game. See if that helps.