Youless integration: invalid state from sensor.gas_usage: unknown (at 00:00:01.295 hour)

Hi,
I have the following setup:

Home Assistant 2023.8.4
Supervisor 2023.08.1
Operating System 10.5
Frontend 20230802.1 - latest

Youless model: LS120
FW: 1.6.0-EL

The Youless integration works fine, except at 00:00:01.295 when the calculation is done for the previous hour.
The debug log doesn’t give much clues:

2023-08-30 00:00:01.295 WARNING (MainThread) [homeassistant.components.utility_meter.sensor] Gasverbruik dit uur received an invalid new state from sensor.gas_usage : unknown
2023-08-30 00:00:01.300 WARNING (MainThread) [homeassistant.components.utility_meter.sensor] Gasverbruik deze dag received an invalid new state from sensor.gas_usage : unknown
2023-08-30 00:00:01.303 WARNING (MainThread) [homeassistant.components.utility_meter.sensor] Gasverbruik deze maand received an invalid new state from sensor.gas_usage : unknown'

A possible clue: It seems to happen when there is/was no gas_usage (0 / zero) during the day.

Has anyone encountered something similar?
TIA

The problem is solved, no more ‘unknown’, but the reason is unknown. Maybe an update from HAss?