Traffic Manager - Saves one month only

[MorganaCat]

Hey there,
I've an Asus RT-N66U running Asuswert-Merlin 380.59 (which I only discovered about 6 weeks ago!)
I've enabled traffic monitoring and saving the data to an attached USB hard drive.
It is saving a to the hard drive ( I can see the file, *.gz), however, Traffic monitor only shows the current month, not previous months in the monthly summary - there should at least be some data for August).
Is there anything else I need to enable to create an ongoing history?

TIA

 

[RMerlin]

Did you create the database as specified in the documentation?

That's all there is required.

 

[MorganaCat]

Thanks for your quick reply.
I presume so, I selected the create/reset data files options when I initially configured this. I do have a file located at the location I specified. I reset it last night, so I'll see if it keeps ongoing records.
(Love your firmware, btw !!!)