That should not be possible. A table that has modified values indicated by one or more cells with blue corner flashes should always cause its associated tree-view icon to also have the blue corner flashes.
Obviously it has happened as shown in your screen shot - we just need to figure out how it happened.
Can you please list the step by step actions that you performed to end up with the V7 software in the state shown in your screen shot? Hopefully I will be able to reproduce the problem and then get it fixed.
One thing to check: is the *.ctz file that you opened, tagged as read-only? Right click on the file in Windows Explorer and select "Properties" then on the [General] tab page make sure the "Read-only" check box is not checked.
And along those same lines, when you press Ctrl+S to save the file, if the file does not save for any reason, then the blue corner flashes will disappear from the tree-view icons but not from the actual data cells in the calibration tables.
Regards
Paul