Question [Q] No SU Binary installed after flashing rom update

Hmm something weird happend. I was on Android Revolution HD (version 51 or 53, can't remember but it was Sense 5.5 at the time). I just flashed version 62.0 without wipe.

Now I had root before, but after flashing I just got the "Update SU binary" notice in SuperSU. I tried fixing it by installing the latest SuperSU from chainfire.eu but now I get "There is no SU Binary installed and SuperSu cannot install it". Did I do something wrong? I still have a backup from the old Android Revolution if that helps?

How can I fix it?

Edit: Fixed! Re-flashed the latest rom and made sure I selected to flash "Super-SU" instead of "Superuser".