I ask to dig a Neutronium block and the game states that I needed a dupe with Hazmat Digging skill.
So, I give it to one dupe and wait.
The dupe start digging but no progress.
Cancelling the dig or reloading game and trying again do not solve.
I'm not sure if it really should be possible or a lisleading information.
Nevertheless, an odd situation.
I'm not sure.
I just set the Hazmat Skill.