Inconsistent xenops-reveal-on-entry behaviour

[alexeyre]

With xenops-reveal-on-entry set to t I'm getting some strange behaviour where if a fragment is revealed seems to be dependent on the revealed status of the fragment I'm moving from and the fragment I'm going to. This manifests in both fragments not being rendered upon leaving, and on fragments not appearing when the cursor moves to them.
n.b. I'm using evil.
YouTube video with some illustrative behaviour: https://www.youtube.com/watch?v=zXu3xFIZeNk