ammonite support, broken $ivy imports

I've tried to use the support for ammonite scala scripts without any luck when it comes to importing ivy libraries. I've tried with a plain scala, sbt and mill project. I've always set in the scala /worksheet to treat .sc files as always ammonite. My simple ammonite script is:

import $ivy.`org.apache.commons:commons-io:1.3.2`

println("Hello world")

I am getting a "Cannot resolve symbol `org.apache.commons:commons-io:1.3.2" on the first line but when I press alt-enter and "create library from jar" nothing happens.

I've tried even using the build system to import the library and though I can see the library imported in the "External libraries", I can't use it in the script with the classes marked as not in the classpath.

When I type

import DemuxInputStream

and press ctrl-space , the import dissapears.

Seems to me the ammonite support is broken , any ideason what to do?