Dashboard Pages View: Can not drill down into sub pages

I am running two piwik instances and I have a problem with one of both.
The piwiks are tracking wordpress blogs.
When I am on the first instance of one blog, I can drill down into sub pages in the “pages” view.
It looks like this:

Piwik Working

But on the second piwik instance for the second blog I have strange behaviour when drilling down into sub pages.
I can only open the first level an see this:

Piwik strange

I am not sure if this is any kind of setting, if the code is broken or what so ever.

Any hint is highly appreciated.

Thanks a lot

(Running latest 2.16.0)

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Hi Mathieu,

thanks a lot for the response. I just upgraded to 2.16.1-b1. But I have the same effect.
I opened issue #9910.

THanks a lot