Hello @michael barry
Thank you for reaching out on the community and telling us about your issue. I do apologize in the issue you're having. That is odd I'm wondering where exactly the issue is. I believe in this case it might help trying to see on a test file if we have a similar issue. This will give us a better idea of where exactly the issue is. I'll leave steps down below and you can find it on the third step on the article.
https://www.quicken.com/support/advanced-data-file-troubleshooting-correct-problems-quicken-windows
Once you get the chance let us know what you're able to find out. From there we'll see what we're able to do next.
Thanks,
Quicken Francisco
@michael barry Thanks for the update. It's good to hear we made some progress at least. With the transactions do you currently have it so you need to accept transactions prior to letting them in the register or do they all go in at once.
One of the options we could potentially do to delete the new transactions is to sort them then mass delete the ones that are appearing as new. We can do this by selecting the account under the account bar then in the top right selecting the gear. From there select Edit Multiple Transactions. This should give you a better time with selecting the transactions.
Depending on if this works for you please let us know. If you're having difficulty still let us know and we'll see what we can attempt next.Thanks,Quicken Francisco