#CentOS 7 do not have the full function

I use centOS7.4 x64 OS. I used teamviewer12 before, it is OK. Now update it to 13, problem happened.
I download the packakes from your website:
'teamviewer_13.1.3026.x86_64.rpm' and install it. No error happens.
when I start up teamviewer13, and connect the remote Computer, no botton to full screen. The screenshot as follow:

The teamviewer12 connection UI as follow:

Why 13 missing so many functions? I have installed the qt5-webkit 64bit lib.

I try to install 'teamviewer_13.1.3026.i686.rpm', it needs the newest qtwebkit 32bit lib.(it still not upload on the linux pakage website.):
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error: Failed dependencies:
libQt5WebKit.so.5 >= 5.5 is needed by teamviewer-13.1.3026-0.i686
libQt5WebKitWidgets.so.5 >= 5.5 is needed by teamviewer-13.1.3026-0.i686
libQt5X11Extras.so.5 >= 5.5 is needed by teamviewer-13.1.3026-0.i686
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