SkeletalMeshActor disappears when movie renders

So I’m trying to render a movie with skeletalmeshactors, but they always disappear for some reason. However, when I do playback of the movie in Sequencer, they’re there. Any ideas what the problem might be?

I have tried googling some solutions but so far nothing has worked - neither upping the Bounds Scale in Details page, nor lowering the Percent of Triangles in Asset Editor. I’m very new to Unreal and don’t really know what I’m doing.