Negative (!) solar "production" messed up my stats today

For some reason a massive negative(!) “production” bar appeared on my energy dashboard:


I’ve looked through statistics in developer tools and found nothing. same in the database.
Where should I look/what am I missing?

Have a look at the sensor history graph.

I did, nothing interesting at all:

SELECT * FROM `statistics_short_term` 
INNER JOIN `statistics_meta` ON `statistics_meta`.`id` = `statistics_short_term`.`metadata_id` 
WHERE (`statistic_id` = 'sensor.sensor_t_series_pv1_energy'
OR `statistic_id` = 'sensor.sensor_t_series_pv2_energy')
AND sum < 0
ORDER BY start_ts ASC;

Returned some (slightly) negative results:

Yesterday it was ok, today I got the same thing. It never happened to me before 2023.5 (and I did upgrade to .1 and then .2 since)

Source entities are ok, any idea where to look @tom_l ?

None at all sorry.