Indesign bug: RTL mark not working

If i put a RTL-mark before it, i just get a little directional arrow but the text doesnt change direction. 

By @Lordrhavin

I didn't understand the above part of what you wrote. However, I do understand that you need to have RTL / LTR controls

To get these Paragraph direction controls, you need to have the Middle Eastern version of Adobe InDesign.

In order to install the Middle Eastern copy of Adobe InDesign, you can remove existing copy, or keep existing copy thus having two copies of InDesign eventually, one for Right-to-Left languages, and original copy of InDesign on your machine for English jobs.