Symbols in predictions

Hi, it's been a while since my SwiftKey has stopped predicting the correct form of " un po' " (Italian, it means "a little bit"), it just predicts " un po ". As you can see the apostrophe went missing and it's actually a grammar error in my language, because " po' " is short for "poco" and if you shorten a word the apostrophe is mandatory (also because "Po" is the longest river in Italy but that's another story).

I tried deleting "po" (without the apostrophe) from the prediction bar, deleting and reinstalling the app, I've even tried running it on different devices but the issue seems to be account-wide.

Can anyone help me please? :)