Deploy change Network Device FGT in FMG

Why when I configure the Network of the FGT device in FMG, the configurations are not synchronized to the device even though I have applied and checked that there are diff changes compared to the previous Revision. For example, if I enable the https service of an FGT device using the FMG interface, I cannot access it, but if I access the device and configure it, I can access it normally.