It seems like an incoming transaction showed up in my Mycelium 2.0 only after about 20 confirmations (about 3.5 hours delay). Is this possible? Im pretty sure I was looking at the right account.
You must have looked at the wrong account. I usually see transactions the moment they are sent. Have not experienced any delays except of course for the confirmations.
I too have not experienced any such delay before. So I guess you must be right. My tired, old eyes are starting to play tricks with me.