the title covers it. I'm on v11.3.0.0 on a MacBook Pro running Mojave 10.14.2, and trying to run ImageRestyle seems to immediately throw a bunch of errors that aren't related to the input in an obvious way. This happens even with the examples given in the documentation, and then the input just hangs—it's not clear if it's successfully doing anything or not, but I've left it for quite a while (~1 hour) with no results.

I'll include a screenshot, because the input is literally just defining two images, i and s, and saying: ImageRestyle[i,s,PerformanceGoal->"Speed"].

Is there something obvious that I'm missing here? I can't see it, and I couldn't find any similar errors when searching either here or google.