Prometheus "Error scraping target" while reading /metrics

[nodje]

I'm using Scaphandre with latest docker image, deployed on a baremetal hypervisor (Truenas 25.04)
with command being ['prometheus','--qemu']

Prometheus returns a scrape error:
Error scraping target: label_value_length_limit exceeded (metric: scaph_process_disk_write_bytes, label name: cmdline, value: "/usr/bin/qemu-system-x86_64-nameguest=8_ubuntudock", length: 4478, limit: 200)

Looking into /metris, this value returns, as shown by the very high 4478 figure, an amazing amount of information that seems to have nothing to do with scaph_process_disk_total_write_bytes

I guess I could simply override the 200 limit for the scapahandre scrape, but is this really expected?

[nodje]

Also I have to push sample_limit in scaphandre scrape config to 7000 (6000 doesn't cut it) for the scaphandre target to bcome UP in Prometheus.

Below that I get a Error scraping target: sample limit exceeded

Is is expected as well?