After the 2025.01 upgrade my modbus connection to victron doesn’t update my victron ESS.
I don’t see errors.
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I am having a similar issue since 2025.1.0 however it is using a custom integration to poll modbus for my solar PV setup via sungrow inverter.
A quick google revealed this post and many others complaining of similar issues relating to modbus which looks to have been updated in the core update.
Same here. Updated core to 2025.1.0 yesterday at 1605, Modbus integrations lost comms same time. 
As there is 2025.1.2 out now, do you still encounter modbus issues?
The issues still exist across multiple modbus systems.