We would suggest upgrading to the latest version. Please also take a note of the below for work arounds:
1. Ensure that any specific -mapsclean ssync task is stopped from running. 2. Continuing to run the standard ssync task with no flags is fine 3. Perform a check for any maps that you feel may have been deleted without approval. If you notice any issues please raise a case via https://support.tibco.com for assistance
Issue/Introduction
SSync -mapsclean task can lead to deletion of draft maps