ChemFinder: After editing an existing ChemSAR property I click "Calculate Now", but the property does not refresh.

I have just edited a structure and now I want to recalulate an existing ChemSAR property, but when I click on "Calculate Now", the property does not refresh.

The problem is that Calculate Now feature will only work on a valid ChemSar formula. The property value does not refresh because it is text, not a formula. The solution is to delete the property value, click on the structure and then use the Calculate Now button.