EDIT: Literally the moment I made this post it decided to function and update, so...my apologies, please lock/delete.

Updating my signature on the forums shows that it is updated successfully. I've completely deleted, saved, and redid my signature to see if that would help but to no avail.

What I see when I update my signature:

And what I and everyone else sees when live posting:

It's been like this all morning now and I'm not sure what to do besides post here. It's just a mild inconvenience really.

Right now I have the same problem. I could not add or change kiss in Flower shortcut.

Update: For me it is fixed right now. Thank you!