I have a unity project that used to work. Now i'm getting the error "EasyAR is running with an unsupported graphics API of type -4" in XCode debugger with Iphone 6s on iOS 11.2 and the screen stays black.
The HelloARVideo example, which was the base for my project, is working. I compared all the settings i can think of and they are exactly the same.
Of course i took all the steps shown in the doc.
I also deleted all the files but assets-folder and reimported into a new project. Didn't work.