No I for iPhone Users Thanks to Glitch

Many iPhone users have found that a glitch is currently  preventing them from typing the letter "I" in text messages. The device  instead corrects the "I" to a random character like "A," "#," or "!".  The bug also seems to affect typing on apps including Twitter and  Instagram. Apple says it's working on a fix that will be released very  soon. In the meanwhile, it suggests that you set your autocorrect of  capital "I" to a lowercase "i."

Source:  Buzzfeed