Hello @VTron21
Thank you for reaching out on the community and telling us about your issue. I do apologize for the issue you're having. That is quite odd that you'll miss only a couple of transactions. Generally when this happens we may just need to refresh the connection to Quicken. To do this we should just need to deactivate and reactivate the account to try. I'll leave steps below on how to do so.
First thing I'll recommend is to save a backup to revert back to just in case. You can find how to do so down below.
https://www.quicken.com/support/how-backup-or-restore-your-quicken-data
Next we'll try deactivating all of the accounts. You can do so by following the article listed down below.
https://www.quicken.com/support/deactivate-online-banking-services-quicken-account
Once all the accounts are deactivated go ahead and follow the article here on reconnecting the accounts.
https://www.quicken.com/support/reactivating-deactivated-account
Once you've tried this see if you're getting all your transactions to download. Let us know how it goes!
Thanks,
Quicken Francisco