CPU temperature not reporting on graph

I have this issue too, and this seems to be due to a simple off-by-1 in /usr/local/lib/python3.9/site-packages/middlewared/plugins/reporting/plugins_freebsd.py during the calculation _get_number_of_cores(self)__, which returns sysctl.filter('kern.smp.cpus')[0].value. This is the 1-indexed number of cores. However, all the subsequent uses of _get_number_of_cores(self) in _{{}}check_cputemp_avail(self) and get_defs(self, identifier) assume a 0-indexed value. Changing the loops to start from 1 should resolve this.

Debug file attached.

Thank you for the report, @Alfonso Marsiglia. Can you please attach a debug file to the "Private Attachments" section of this ticket? To generate a debug file on TrueNAS CORE, log in to the TrueNAS web interface, go to System > Advanced, then click SAVE DEBUG and wait for the file to download to your local system.