If a promotable E-4 gets flagged, should they automatically get promoted after having the flag lifted?

I passed BLC early 2019 then a few months later I was sent to the board and I passed. Then a couple weeks later I got a summarized article 15 with no extra duty or loss of pay, just a flag. A few months ago my flag was lifted. I was talking to some NCOs in my company and this topic got brought up. They are telling me that since my flag got lifted and I passed BLC and the board, that I should be promoted automatically. My leadership have been telling me that I have to go back to the board and pass it again to get promoted. I’m not sure if my leadership are trying to screw me over or if I really do have to go back to the board. I’ve been doing research but I haven’t seen any situations in which someone passed BLC and the board then got flagged. If anyone knows the real answer to this situation it would be greatly appreciated.