Apologies if the devs don’t consider this a bug, but… in the iOS version of MPQ, the keyboard behaves differently than in most other iOS environments. Auto-capitalization, auto-correct, and auto-word substitution all fail to work. And if I select a suggested word it is not inserted into chat. It behaves as if it is using some older, no-longer-fully-compatible version of the iOS keyboard. This has been the case from iOS 9 to present, on an iPhone 5c and 6S.
Yeah, the chat interface in this game is one of the worst I’ve ever seen. I recommend you download and use LINE as a replacement, most of us do.
NOTE: That doesn’t mean I’m saying the chat shouldn’t be fixed, I’m just not holding my breath or considering it a high priority.
This was brought up about three or four years ago, when alliances were first rolled out, and the answer at the time was that the in-game chat was a third party chat module added to the game and they couldn’t add full iOS typing support. They hoped to fix it someday, but… yeah.