Traffic data not showing

[Frejoh4666]

So I need to track how much data is being used. If I have "Traffic history location" on RAM everything works fine, but I needed store the data incase of a power failure. So I decided to change it to custom location "/mnt/ASUS/traffic/", checked "Create or reset data files" and I found that there where "no clients" on ip monitoring.

I set it to save every 12 hours, so I thought that maybe its not real time, waited 12 hours, but still "no clients". I did find that the "traffic" folder exist with an "tomato_rstats_f0795988b308.gz" file on the USB.

Is this normal? Can I have it like it was when it stored the data on ram but just saves it to the usb instead? (dont want to lose data in a power loss) Real time still work as usual, and the raouter is an ASUS n66u with Firmware:380.70

Edit:
Here is how it looks when it store it in RAM
https://i.imgur.com/SqbaHjH.jpg

And USB (custom location)
https://i.imgur.com/zy3kqPt.jpg


Turning the feature on and off seems to fixed the problem.