Multibit has two random transactions in one of my wallets, seen by 4 peers but unconfirmed, is not found on block chain, and happened at the exact same minute on Feb 15.

When I hit transaction details nothing comes up, and when I say view on blockchain it says transaction doesn't exist, or none found.

Both are for 0.00000001, is very odd.

Do I have anything to worry about security wise? Or should I just continue ignoring this?

Screencap added.