Adding a static offset to a rotation is ignored

I tried to offset the rotation of a destructable by 50 degrees, but it does not matter what value I put into the addition box.

Sample blueprint. This has the same effect as this.

I made a variable Val that I initiate to be 50, and then depending on what button I press the value should change. If I instead insert Val = Val + 1 into the tick function, then I can see the object rotate.

Since it rotates when the variable Val is changing, then I know that my logic works, but when I set Val to be something static or use a literal, then it seems to be ignored.

The UE4 build I am using. The project is based off of the FPS template.

EDIT:
To clarify, I have tried using a variable and using a literal.
What i want to achieve is simply to make the object look at the player at all times with a rotation to the side and the button press is just random test scripting. The two pictures are only there to illustrate that the difference in the scripts that lead to the same result.

Mine works as expected (4.7.4)

I can try downloading and building the latest engine on Tuesday when I come back to proper internet. If it works for you it might be something that we have changed or messed with. I will update this post after I test it on Tuesday.

As MorkoyZmey has suggested this is working properly that I can tell.