Making an artboard from a selected layer inside a group of artboards doesn't behave as expected

[rnbutler87]

I have a group containing artboards.

If I make an artboard from a layer outside that group and then drag that artboard inside the group, everything works as expected.

However, if the layer artwork is already inside the group containing the artboards and then I make an artboard from the selected layer, it goes a bit skew wiff - seems to make an artboard out of the whole group, rather than the selected layer...

See the video: https://www.loom.com/share/b4d89134a3ae4b66be528bd4c76c3bac