Andi left her post in strip 1055:
http://www.giantitp.com/comics/oots1055.html
and again in 1057:
http://www.giantitp.com/comics/oots1057.html
she should have been repairing, not trying to give Bandanna instructions, or complaining about the Order. It took Bandanna a long time to tell her what to (go back to her post) - but she was kinda busy.