Family tree does not display on android tablet

I have set up a single item family tree example on your demo page. It is called JW Test and was set up on 23 May 2016.

This was to demonstrate the previous problem here: about viewing trees on an android phone:

https://www.simbunch[...]ion&qid=679

I have just purchased a new Acer android tablet running 5.1 and the problem occurs on this tablet. Please see the attached screen shot.

It is a single item tree and I can view it fine on my PC. However on my android tablet you cannot see the tree.