Playing video in level blueprint breaks entire blueprint (4.11)

In my level BP I have a Play node which plays a media texture displayed on a TV in the level on begin play (which then goes on and does some other stuff).


Everything worked completely fine in 4.10. when 4.11 was released I upgraded the project and ever since then my level BP doesn’t run at all if I have the play node in the BP. When I delete it everything else runs fine.

Its not the video as I’ve tried others. I’ve even tried making a new variable for the reference but no luck.

I also tried using set play rate rather than play which also caused the same issue.

I’m getting no errors however. Any ideas?