Bug: PDF with typewriting shows up incorrectly in mobile view

I have multiple PDF documents in Box that have been edited with PDF-XChange Editor. They have been added a version stamp (date) with the PDF-XChange Typewriter tool. 

This time stamp gets somehow mangeled in Box mobile. 

This is what the document actually looks like in any pdf viewer or Box in web browser:

This is what the same document looks like in Box mobile (Android) :

As you can see, the date is replaced by a Box version number and font is also changed. Now how peculiar is that? 

This issue does not occur in web browser. 

If I download the file in mobile device, I get the orginal file with a proper version stamp.