You're on the right path, Nate. I acknowledge that every penny counts and that secure and seamless fund transfers are essential to every business.
As per checking, I've seen that my colleague has already addressed your concern about your missing fund. For further details, kindly check this link: Missing money after an error while transferring from Envelope to Account.
I'm also adding these helpful articles that answer the most commonly asked topics regarding QuickBooks Checking and details about managing your Envelopes:
You can always add another post here in the Community if you have more queries about transferring funds through QuickBooks Envelope and Checking or whenever you need assistance handling your transactions and reports. We are always available 24/7 to help you out.