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 I'm wondering if it may have created a new file at random. The easiest way to get everything back though should be to take a look and try restoring a backup. I'll leave steps on how to do so down below.
Once you've had a chance to try this let us know what you're able to find out. If this doesn't work we'll see what we can try next.
Filtered register? Unexpected register sort order?
Please review https://community.quicken.com/discussion/7181795/faq-register-messed-up-missing-transactions-or-not-showing-transactions-as-it-used-to
Thank you - i am a bit sheepish ! Used Quicken for a long time and niver set sort on the status column before! Not sure why it went back to April 2020 but all is well now!!