Can't use empty pipe tool on conveyor rails

Not a dev, but I believe that the empty pipe tool is only designed to work with pipes, hence the 'pipe' part of the name. For conveyor rails, you need to deconstruct them.

 

Perhaps a suggestion should be made to change the Empty Pipe tool into an Empty Conveyance tool instead.

I guess the tool is actually called extract pipe contents, but it shows it should empty conveyor rails as seen in the screenshot.

 

I've noticed the same thing and was going to make the same bug report, but instead I'll like yours so it's more easily seen by the devs

Same for me.

I was forced to destroy the rail to free the unexpected material.