Installation media problems (always installs the lates version of centos, redhat, scientific linux)

Hi guys,
Faced a weird problem, each time when I kickstart a new host, in
automatically updates to scl69 or centos 7.4, even though in settings
min/max versions are 6.7, 7.3.1611

I found, that I can add disable function and disable updates.
I assume it's related to centos, scientific linux mirrors, they push the
latest version every time in updates?

Thank you