Oh my god, my nxt was stolen by some one,
and the client behaves strange today: when I unlock my account, it stucked there and client complains:
the theft transaction is
sender: 16886318053889080545 recipient: 9793828175536096502 amount: 18197 fee: 1 confirmations: 453
which happened yesterday!
OS, Where did you you download the client? Which node you are using to access the account?