Very Serious Security Problem Synapse 2

I use both Synapse 2 and 3, and I changed my password just now and Synapse 3 picked it up immediately, but Synapse 2, it says the new password is incorrect, and my old password still works. This is a serious security issue and would like to know if there is a fix or something I can do. Thanks. Update - I guess it takes almost an hour for Synapse 2 to update your password.