Every now and again, the score shown in the summary lines is wrong and
actually corresponds to the message number + 1.  Image attached.  For
the first article, for instance, the actual score is -807.

My gnus-summary-line-format is

,----[ C-h v gnus-summary-line-format RET ]
| gnus-summary-line-format is a variable defined in ‘gnus.el’.
| 
| Its value is
| "%6N %R%U%O%uj %3{%&user-date; %5i %4k|%}%I%(%-25,25f%) %5{%*%s%}
| "
| Original value was 
| "%U%R%z%I%(%[%4L: %-23,23f%]%) %s
| "
| [...]
| %i          Article score (number)
`----

Does anybody have an idea why this would happen?

Thank you,
eric

-- 
Eric S Fraga via gnus (Emacs 29.0.50 2022-05-19) on Debian 11.3