Firewall Report Viewer at some point stops displaying logs which are instead in the exported .txt

[fabiodanzetta]

Hello everyone.
I had set the reports to keep them for 30 days with a file limit of 1024 mb but I noticed, looking at the firewall ones, that after about 14 days no more logs were displayed even though I had drops in real time.
I then saved the report in .txt and inside it I found all the logs of the 30 days while in the app viewer the recording had stopped.
Can anyone tell me what could have happened or if it is a bug?
If I set the maximum retention period to 2-3 days everything works regularly and the logs in the app are updated.

Thanks everyone.