Merged/Glitched account issue (Xbox)

mcttsun

Today, my sister was playing DBD on my xbox account in order to level me up in the rift, however when she went to switch back to her account, my account had overlapped hers - she never had decisive strike as a teachable, however, when she went to one of the survivors (not laurie) layouts, decisive was there as a perk. Not to mention, the levels from my characters has over lapped hers so now her LVL 30 Feng Min is LVL 50, and her LVL 45 Bill is now LVL 45. Also just to add another thing, characters that i haven't bought on my account, that she had levelled up to LVL 50 is now LVL 1. I've been playing DBD for a long time now and nothing like this has happened before so please tell me if you find a solution/fixed the bug.