 The reason for this was that he published several critical articles about the Polish pre-war authorities and the Sanation regime as the editor of a Polish-language Soviet journal.For this, Bujnicki was sentenced to death "in absentia" for treason by the Polish Underground State in Vilnius in 1942.However, he avoided execution, as he fled from Vilnius and hid by living with relatives in Panevėžys and Palanga, during Nazi Germany's occupation of Lithuania.