Hey guys,

I am trying to send IOTA to another wallet (same wallet version, latest version). The receiving address has not been used before. When i try to send the coins i get this error message:

ERROR: PRIVATE KEY REUSE DETECTED!

You are attempting to sign a transaction with input that have an already been used. IOTA uses Winternitz one-time signature (W-OTS) scheme, due to it's `one-time` nature, the security of funds in an address decreases rapidly if you re-sign new transactions using the same key. Please wait for previous transaction to confirm, e.g. by reattaching, before sending another transaction.

I noticed that, when i create a new address it is found on the tangle and shows "1 transaction" (O I, pending). even though, obviously i havent sent anything to it yet. This happened several times now. What do i do wrong?