DIYBMS/Venus stop charging

I have a strange problem:
My DIYBMS/Venus stop charging exactly at 52V battery voltage. (15S system)
I’ve been looking for the error for a week and can’t find anything. DIYBMS regulates the charging current to 0A when 52V is reached.
-I think I have checked all the settings, both in the BMS (latest version) and in Venus (3.52)

  • I have reflashed DIYBMS on the ESP32 and reset the settings.
  • it happen in Dynamic and Standard charge mode.
  • The charging voltage has no effect, also 56V charging voltage dont change the problem.
    I don’t know what to do!