transport rewind issue

Hi, all, I have an issue with the transport object, I am building a sequencer app and needs it to play from the beginning sometimes, I used the rewind/set the current position to do this, but every time I used the rewind, send a "0." message to the transport right inlet or use the pack object to send a list 0 0 0. to the left inlet, it always return to some position rather than 0 0 or 1 1, sometimes 2 4, sometimes 7 3 .... Anyone know how to solve this problem?

Thanks!