Question about Randomization with Branching

I have a survey where the set of questions a respondent sees from Block B depends on whether or not he/she saw a particular question in Block A (the questions contain similar material, and so we obviously want to avoid this). The details: both blocks contain 4 unique questions, but Block B branches such that if question 1 from Block A is shown, respondents are only randomized into 3 question options, whereas if question 1 from A is not shown, respondents have the chance of seeing all 4 questions from B.
My question is this: If the block ordering is fully randomized, will the branching effect hold even if Block B is shown before Block A? In other words, does this branching logic hold regardless of block order? This is not clear from the survey-flow platform and I've seen randomization instances that make me suspect otherwise. Thank you.