Generation schema not available for certain object types (4244910)

Generation schema not available for certain object types

While we are trying to create an archive set out of the added objects to the CSR, in the objects tab of the create archive set wizard, we do not see the Generation Schema button as enabled at the first go. We have to choose ok after adding the object to close the archive set creation wizard, so that it shown In Process. After that we have to open the archive set again to choose the generation schema (as this time it is enabled) before the archiving completes.