After upgrading to Datameer 6.3+, I attempted to open my Workbook but received a warning:
The workbook is being edited by <username>. Do you want to open the workbook anyway?
Introduced in 6.3 is the monitoring of concurrent edits on workbooks. The goal is that if a workbook is open, a warning is presented on any additional user's screen of this fact.
If your experience is such that you are viewing these warnings outside of expected times, please feel free to contact us via firstname.lastname@example.org.