Management Shell 1.2 states it supports QC Synch Engine 5.2
Management Shell 1.3 states it supports QC Synch Engine 5.4
What does QCSE 5.3 use?
Tthere was no release of a Management Shell specifically for QC Sync Engine 5.3.
* Management Shell 1.3 will only work with Sync Engine 5.4.
* To use Sync Engine 5.4, you would need to install Management Shell 1.3.
If you wish to continue with Quick connect Sync Engine 5.3 and management shell 1.2, it is highly advisable that you have the below Fix in place https://support.quest.com/kb/SOL118152