Identity Safe Maintenance never been runned.

I've got Norton Security 22.8 on my PC with Window 10 AU and I noticed that Identity Maintenance never been runned. I've got only Antispam Maintenance, Licencing Maintenance, Insight Maintenance and Product Maintenance grayed in Background Tasks. I use Identity Safe extension in Firefox and original Identity Safe in IE, both of them connected to my account and always unblocked when use PC. Reinstalling (even with Unistall Tool) didn't help me with this issue. Who can tell why I have it?