Tag trigger not running multiple times

Hi there,

I’ve got an automation where the trigger is the tag gets added.
I’d like it to run multiple times. Is it possible with this trigger?

I tried out now and it runs only once. I guess it’s because you can’t give the tag twice unless you deleted it.

The people gets in this automation only with a sign up form. Is this the best way to do it or is it better to use different trigger?

Thank you