File transfer from teamviewer 13, Ubuntu 16.04 to Teamviewer 10 Ubuntu 12.04

Gyedafe

Dear All!

We running many industrial miniPC-s in europe with teamviewer 10 installed, on ubuntu 12.04.

From teamviewer 12, I had a menu on the top, but upgrading to 13, it is lost. So I can't use the file transfer. I'm using Ubuntu 16.04

Is it normal? I need to upgrade all of 250 miniPC to teamviewer 13 to keep it running? Or I have to switch back to 12?

Many thanks,

David.