I have the same bug. NVI NAT static rule dissapeared after some time from running config.Cisco 3945e ios c3900e-universalk9-mz.SPA.157-3.M6.bin  

@CarlosGarcia84 wrote:I am afraid to upgrade to 6.4.0.7 has Cisco found a working resolution yet? Will be checking this thread for more updates.Thank youCisco publish new hotfix. Cisco_Firepower_Mgmt_Center_Hotfix_AA-6.4.0.8-4.sh.REL.tar I'ts resolve...