Strange behavior of the heat pump in cooling mode

[Vaszago]

At the beginning of Juny, the firmware of my heat pump was updated to 24.040.

Some new functions have been introduced here.

There is now a function for heating and cooling at the same time.

There are also new functions in the statistics.
The heat and energy meter has now been included in the calculations with the values ​​of the PV system. This shows what the PV contributes to the heat pump.

Now the heat pump's own consumption is being recalculated and is now significantly higher than before. Which is probably correct now.

Nothing else caught my attention

Now the errors that I noticed with this version.

The Modbus connection to HA has become somewhat unstable. After an update of HA, I have to restart HA 2 or 3 times to establish the connection. But it always happens after a few days that the connection fails.

I only noticed the second major error now when I activated the cooling.

If I set the HK1 to continuous operation and cooling in the settings, I see a cooling request from the WP and the WP does not start.

And the HK is waiting for cooling operation.

In this cooling mode the heat pump never starts. I have set the heating circuit mode manually to cooling + heating.

If I set the mode to heating, the HK1 starts again and begins to cool.

So now the error that I don't understand.

If I start cooling with these settings, the buffer storage is cooled to 25 degrees. Then there is a request to charge the buffer storage to 35 degrees (heating mode HP) and then it starts cooling again. An endless loop.

If I make the setting via HA.

If I make the settings on the HP, I don't see this behavior. The buffer storage is cooled to 18 degrees.

Either the HP is receiving incorrect commands via Modbus and HA which are causing this behavior.

If the Modbus connection is interrupted, it seems to work.