Quick message responses not saving in Samsung Galaxy S8?

No matter what I do, I cant get custom quick responses to save. I know how to add them and save them, but whenever I get a call and go to use them I

No matter what I do, I can't get custom quick responses to save. I know how to add them and save them, but whenever I get a call and go to use them I am only given the stock responses. My custom ones are nowhere to be seen.

or:No matter what I do, I can't get custom quick responses to save. I know how to add them and save them, but whenever I get a call and go to use them I am only given the stock responses. My custom ones are nowhere to be seen.

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