ASA failover: The solution set portsecurity to F0/12 and F0/15, this ports are ASA1 and ASA2 respectively. When switchover occurs,
those ports go to errdisable, because "Secure Mac Address Table" was populated, and violation occurs.

HSRP: according to the solution guide, port-security static mac address must be configured on SW1 F0/5 (R5 hsrp status standby) for the HSRP virtual mac, this also set an static mac-address-table entry. All frames that arrive on SW1 F0/13, destination HSRP virtual mac are forwarded to the F0/5 which is not the active HSRP, and silently drop the packet.

Maybe a workaround for this issues can be found with "switchport port-security aging time" and "switchport port-security aging type".

Bye