Hi there!
I think you are looking for posts to display regardless of page language. This I found to be the solution but it seems with 4.3 this does not work any longer – it may be another issue, could work fine for you.
https://polylang.wordpress.com/documentation/documentation-for-developers/tips-and-tricks/how-to-display-the-default-language-post-if-the-translation-does-not-exists/
I have emailed Syllogic requesting their support but not sure they will respond.
Hope this helps you!
It seems to be working now, maybe still a problem but will put it to resolved for now
Any help on this? I would love to be able to display the photos from photostream into a page, how do you do this? Thanks for your idea and effort!