Blocking Load not working when streaming levels

On 4.13 I’m still having this, but for whatever reason I was never able to repro it in an empty project. Further, I’ve just realised that the other bool on the node, Make Visible After Load, is also not working. The default is true, but if I set it to false, the level still loads and becomes visible. Seems like both the bools just get ignored. :confused: