$10,500 Disappeared from my Ledger Flex

I recently got a Ledger Flex to move crypto from my Coinbase account. I did plenty of research how to use it, watched videos, etc. I started moving small amounts of crypto to the wallet, familiarizing myself with how it works. There was $1,050 BTC in my Ledger already today when I moved $1,000, $5,000 and $5,000. It didn't take long for the balance to update and show $12,050.

I hadn't moved any crypto from Ledger back to Coinbase yet, so I thought I'd send a test to learn if there was any major difference in the transaction steps. Started the process in Ledger, entered the Coinbase address and sent $500. The transaction went through without issue, but as soon as it was completed my balance dropped to $1,000.

Is this normal? Did the new transactions get put on hold? I want to make sure I'm not missing anything basic before I contact Ledger support.