Well, it's a bit strange for me, because I have fixed mirrors in the middle (where you can't reach).
And on Wiki and the videos there are fixed mirrors.
You can do the left side but not the right.
You need to contact support and they can fix this bug.
In the game, open the SETTINGS menu, and clikk the SUPPORT button. In the site, ignore the white text box and scroll down. Select the GAMEPLAY category, and chose BUGS & ISSUES.
The answer of this question: 'Please take a look at the common error section - Did you find your answer there?' is NO.
Then fill the form and write what is your issue, and send your Ticket.