When I try to run the Spine runtime examples using SFML and Visual C++, most of them seem to run fine, but the Goblin and Stretchyman examples have strange rectangles where there should be transparency. For Stretchyman, there's only one rectangle:
But the Goblin is a disaster:
Note that the Goblin is holding both his shield and his dagger, which I'm pretty sure is also incorrect. A rectangle also appears around the Goblin's eyes, but only for one frame, so I couldn't capture it.
I followed the instructions as closely as I could, save that I'm using Visual Studio Community 2017 instead of 2015. Any idea what's causing this?