No picture zoom in Twidere app

When I use Twidere app (a free Twitter app) I can’t zoom in (nor out) pictures. When I open the picture in any browser it works.
It is not quite the same error that is mentioned in

In my case most pictures are shown too small. On my old phone (OnePlus One) Twidere worked fine.

Any hints or workarounds for this?

I use the google-free OS. (built on 27.01.2015)

Maybe this issue is not correctly fixed?

I haven’t had this issue in two years using Twidere until I switched to the FP2.
But writing the programmer may also help.