Docker port option missing

I've noted on the last two 8.4 rc5 and rc4 that docker does not seem to have a field for entering the container port.  This seems to happen on newly downloaded or created docker apps only.

I assume don't need logs for this, but happy to provide if need be.  Note in the screenshot the container port is a description of a container port, not an actual container port.

This makes a new docker impossible to install, unless you don't require any port mapping.  Probably could do it manually.