Safari stopped autofilling text codes on Mac since Sequoia 15.4

Since I updated my Macbook Pro to Sequoia 15.4, whenever I have received autofill text codes from Apple, they display as they normally do, but when I tap to fill them, only one or two of the digits autofill. I have rebooted my Macbook Pro, I have cleared my Safari history. Though I have not changed any settings on my iPhone 15 Pro, I have confirmed that all required settings are correct in Messages. The only difference is the Sequoia 15.4 update.