APM strange behavior

Hello, I have an HA pair that are running LTM/ASM/APM version 12.1.0 HF1. The APM is temporality being renewed until we get permanent one. I am facing some issues related to APM hoping someone can assist. 1- While re-licensing the APM add-on license on the standby device (and performing a reboot), each VS that is binded to an APM profile cease to work(such as owa and active-sync) on the active device. Until the standby (newly licensed) boots, and I failover to it. Other Virtual servers that do not have APM profile works properly, as expected off course. I noticed this behavior for the second time. 2- Now, everything is working, I made a copy of a working APM profile (serving OWA and active sync) to perform some changes/tests. This new profile is replaced by the old one , test is performed, we rollbacked to the previous APM profile in the VS. The OWA and active sync cease to function, until I do a reload of both HA (one after the other). Off course, I tried to kill the sessions with no avail.

anybody faced such issues before.

Regards, George