autocorrect still having issues even after the ios11.1.1 update.

Hi, prior to the “i” bug issue, my phone began changing the word “it” to “I.T” my software is updated to iOS 11.1.1 and I reset my keyboard dictionary, however when I go to type the word “it” it automatically corrects it to I.T and my friend is having the same issue. I had to manually override the correction so it didn’t do it every time I typed the word “it”.