Modifying Checkout shipping error messages doesn't change the actual message used (Dawn)

[cesarbert]

In https://admin.shopify.com/store/<mystore>/apps/translate-and-adapt/localize/online_store_theme_local... I am able to modify the error text, but regardless of what I change both English and French to, the actual message used by the checkout form remains the default message. How do I change this?

[cesarbert]

Yes, I'm using Translate & Adapt, and modifying both available languages

[cesarbert]

Doesn't seem to change anything. It's as if there's a hidden default version of the checkout messages, so when editing via either Settings > Checkout > Edit Checkout Content or via Translate and Adapt doesn't actually change the text being used at checkout.

The two sections I'm trying to change are "Checkout shipping errors shipping method not available generic" and "Checkout shipping errors shipping method not available updated"

Not able to share a URL, sorry

[cesarbert]

It'd be great if someone could offer some insight here. I've changed the base text in the defaults for the theme and all the localized versions, but none of the changes are ever used by the actual live checkout.