Text Expander Ipad weirdness

This is an issue I have had only occasionally on my ‘old’ ipad Air and now on my new ipad pro. . . I have a Text Expander snippet for birthdays. .xhb—-it allows me to give a nice birthday greeting for my FB friends. . sometimes 1 or 2, sometimes 8-10! My keyboard today was ‘mushed’. . .Does anyone know what causes that and how to fix it?