What version of K-9 Mail are you using? There used to be a bug that could cause a folder being displayed multiple times. It should be fixed in the current beta version (5.718, see How do I become a beta tester?)
What version of K-9 Mail are you using? There used to be a bug that could cause a folder being displayed multiple times. It should be fixed in the current beta version (5.718, see How do I become a beta tester?)