default message on some browsers

Hi, I was not having this issue a while back.

On some browsers, I am getting this: Shipping costs will be calculated once you have provided your address.

I am using your plugin for shipping based on price. A few days ago my client asked for In Store Pickup, which I added with the default Woo shipping zones.

Does your plugin not work well if I am using it along with shipping zones?

It is odd, yesterday it was showing the shipping options in all browsers, this morning the default message was showing in all browsers. Now the correct options are showing in Edge and Chrome, but not on iPhone or Firefox. Any ideas??? Sorry but this site is suppose to go live tomorrow! Thanks!