I ordered my dwarf to build a wall, but while he was carrying stone to it, I posted an alert making all dwarves drop what they were doing and run to the burrow point.
When the alert is turned off, no one resumes building the wall. I tried to remove the wall designation, but
n does not work.
x does not work either.
How do I remove a wall designation that hasn't been built yet? (also why do the dwarves not resume the task? Is it a bug?)