Fortiauthenticator usage profile not matching actual usage

Hello,

Currently our Fortiauthenticator is on version 6.6.8, and we have an issue in which usage on the user is not matching actual usage of the firewall - resulting in the user being disconnected due to daily quota consumption. We have Daily limit profiles set on all our users. And most of the cases, the user consumed for example 700MB, and his limit is 1GB, but the Fortiauthenticator reads the usage as 1GB and disconnects him, below is more in depth and has an example.

User mrw.user78x has 2GB daily limit quota enforced, below you can see his usage from firewall its self – 1GB

Use monitor tab showing correct usage

But in the user profile usage showing fully wrong – 1.9GB - Only after pressing reset usage, it will refresh to the actual correct usage, but if we don’t do this, the user will be kicked out shortly due to reaching 2GB daily limit even though in reality he is not.