Prototype not clickable

Hi, 

I'm new to XD and I have a problem with making my prototype work.

You can view it here: https://xd.adobe.com/view/e8d7dbd9-9554-45a6-5dd7-af34136eefb5-9ee6/grid

I have a lot of different screens that I'm trying to connect to eachother. It's almost like it's to much for XD to handle.

In the grid you can see how all the screens should be connected to eachother, but if I try to click on all the elements, only a couple of things work.

Anybody familiar with this?