Unfortunately, we can’t reproduce this issue and Page Groups
are displaying in the TreeView navigation. Maybe you are setting some property that causes this behavior. Could you please give us more details how to reproduce the problem and we will try to figure out what is wrong? Are there any specific circumstances in your project like multilingual and etc. that eventually can cause this? Also how are you creating Page Groups
and what is their status? Please note that only published pages are included in navigation.
Thanks for your cooperation in advance.
All the best,
the Telerik team