Thanks feedback, @juancamilovasquezard!
For the date issue, you were right! The times didn’t match up so Bubble sees that as a different date/time. I also watched the video from @keith to learn more about dates and how they work.
To fix it, I had to change the current date's hours to match what we have in the database (data will always be imported with this timestamp).
As for separating the list, I had to search for the list on the RG (previously I was searching for just the thing and trying to filter).
Then, list the abbreviations in the text box within the RG.
All good now! Thanks again for your help!