Scrape sensor improved - scraping multiple values

Hi,

Looks like something has broken since the core September updates: my sensors, which were working perfectly until the end of August, now all have the value ‘unknown’.

What is weird is that, in the debug log, the multiscrape integration happily shows the right values. For instance:

2021-09-04 11:39:16 DEBUG (MainThread) [custom_components.multiscrape.sensor] Sensor Température piscine selected: 26.0

The values just don’t seem to make it from multiscrape to the HA sensors.

I wonder if this has something to do with the recent changes in sensors for the new long-term statistics. I tried adding

        device_class: temperature
        state_class: measurement
        force_update: true

to no avail.

Any idea?