New sheets created in one browser tab not available in other browser tabs.

When I create a new sheet in a different browser tab - you know, because we can't open multiple tabs anymore - the sheet is not available in the other tabs.  I went out of the folder and back in to give it the opportunity to update, but it didn't.  It does not see like the browser tabs are working very well.  Maybe we should add tabs to the interface to allow access to multiple sheets from the same browser window.

Is anyone else having this issue?