IF logic don't give true or false

Hello Guys,

I’m having a issue, when i set the formula “IF(data.os_id.situacao==“Não iniciada”, true, false)” im only getting a false response even if the “data.os_id.situacao” is “Não iniciada” what do i do in this case?

I’m pretty sure that some valors are “Não iniciada” because it shows when i use a text with value ‘data.os_is.situacao’, but even then i always get a false output on condition logic.