I get the message 'Leaving or refreshing the list with pending changes'

You are attempting to refresh, navigate away from the list, or make changes to a calculated column. Some of the changes you made to the list have not yet been submitted to the server.

You can do one of the following:

• Click Yes to wait while the changes are sent to the server. If any conflicts or errors result from submitting changes to the server, you will be able to resolve the conflicts and errors, and retry sending changes to the server.
• Click No to continue with your last action immediately. You will lose some or all of the changes that have not yet been submitted to the server. You will also not be able to resolve conflicts or errors arising from the changes that have already been submitted to the server.