Outlook Autocorrect “uncorrects”

To write emails, I set up an AutoCorrect shortcut. When I type "ce", Outlook corrects that to "ClubExpress", the name of my company.

However, with a recent update, I've noticed that after typing the next word, the autocorrect "uncorrects" and I end up with "ce" again. 

For example, I'll type "ce " and end up with "ClubExpress " but when I type the next space or a word such as "will", I'll end up with "ce will" instead of "ClubExpress will". It's incredibly irritating!

I've checked my AutoCorrect settings to see if I have a reverse definition defined but nothing jumps out at me. However, the same behavior doesn't exist with other AutoCorrect entries. For example, if I accidentally type "abotu" it autocorrects to "about" but never uncorrects.

So perhaps I'm not looking in the right place. Any suggestions?

Dan