Category not saving

I just joined Tiller so I am a new user, but when using the fill down for a category in Google Sheets, the filled items are not saving. I am on a Mac and use the save shortcut, but have “filled” down the category at least 3 times with the category not saving.

Fill won’t populate the categories. Here is more on how categorizing transactions works: Categorizing Transactions | Tiller Help Center