Thank you for your post.
It's difficult to determine the cause just by seeing the Status Toolbar.
Is there possibly another FileMaker window open?
Do you have any OnTimer script running? If so, what actions does the script perform?
Are you able to access another application?
What other applications do you have open?
Are you able to quit FileMaker Pro? If so, relaunch FileMaker Pro and see if the issue persists.