BIOVIA Workbook 2021 SP1 HF3 Product Release Document (PRD) does not list two defects that are fixed under 'Fixed Defects'.
The two defects NBK-34019 and NBK-34036 are fixed in BIOVIA Workbook 2021 SP1 HF3 release.
NBK-34019: Error saving or checking in an experiment when a second user signs the experiment (as per the signature policy)
NBK-34036: Workbook SSS data generated by calculations but not user entry such as clicking Set button sometimes are lost during check-in events
As per BIOVIA Workbook R & D, this is an error in the PRD creation macro. These two issues have been fixed in BIOVIA Workbook 2021 SP1 HF3 release.