Discrepency between log file size and billable data?

I am experiencing a massive discrepancy between my local log volume and my billable usage again. Despite having a safeguard in my config.alloy, a device flood resulted in 60 GiB of billable usage from a ~1.5 GB source file.

How can a 1.5 GB log file result in 60 GiB of billable data? I suspect log amplification or a feedback loop, but I need assistance identifying the culprit. I have attached images of dashboards I think are relevant.

here is my grafana config:
config.json (4.4 KB)