One issue that drives me off

When user hits backspace, SwiftKey shall present lastly entered value, despite it was broken in parts. For example if I had "ifihad" entered from keyboard, and it was changed to "if I had" (split into separate words) when I hit backspace it shall keep "ifihad" as one of possible correction values. Especially it hurts when you write in Russian, because it doesnt understand whether a prefix was entered or preposition and splits all the time whereas sometimes it is needed to be written together.

vis_vitalis about Microsoft SwiftKey AI Keyboard, v1.4.6