This is a time critical step.
It is important to confirm that your grid has been released correctly. If a grid has not been released into the grid box because it was stuck to the tweezers or lost elsewhere, select Dispose Grid. The tweezers will dispose of the grid into the bin (in the center of the grid holder) and defrost by dipping into ethanol and being dried. This step is important, because otherwise the session report will be incorrect and the button slot will be left empty as the chameleon assumes a grid present in that position.