I can not start, any stopped of itween

Hi Everyone,
I can not start previously I stopped itween. For example I am doing like this.


But it start sometime when it wants :D. There’s something silly situation here.

The documentation of iTween says this about the Stop method:

“Please note that as a result of how Unity threads some operations you may need to insert an arbitrary (though short) pause after a Stop call before adding a new iTween by using WaitForSeconds()”