Spring boot 2.4 Null cannot be mapped to boolean value

HI,
i changed to the new SDN6. In the previous versions when i had a boolean property, and it had no value saved in the db, it was automatically set as false at mapping and caused no problem.

In this however it throws an exception that null cannot be mapped to boolean value.

Should i now set up some Null to boolean conversion or what should i do?
I have tried with the @ConvertWith but no luck so far, can this be implemented with that?