Thank you for taking the time to visit the Community to report this issue, although I apologize that you have not received a response.
We will need a bit more information to be able to assist. Please navigate to Help > About Quicken to provide the release that you are currently running.
How long have you been experiencing this trouble? Did you experience any changes that you can recall prior to this issue occurring?
Can you also please verify the file location? Storing an active data file on a cloud or network drive may cause the behavior you have described.
https://www.quicken.com/support/how-find-quicken-data-file-quicken-windows
Please let us know what you find!
-Quicken Tyka