Digits Capitalize first letter when texting has stopped

DIGITS users . . .  it's a minor thing, but a hassle: for the past 2-3 weeks, the feature that capitalizes the first letter of a sentence when texting has disappeared. The feature is called "sentence case" and it automatically capitalizes the first letter of a sentence plus proper nouns -- and it's disappeared. The feature is still active in my SMS app and in Slack -- but has disappeared from DIGITS

Anyone else having this issue?