By default SCORE_CAN_ONLY_IMPROVE is False, but my superior requires me to set it to True due to the request from the client side.
Both my content and assessment course are in SL2 (they are separated due to SCORM 1.2 suspend data issue), but I noticed after uploaded it to LMS, the score tracking isn't parallel with the result slide score. In fact only SL1 works. And so I have to redo my asssement in SL1 in order to meet the client's request. Currently I have my content in SL2 but assessment in SL1.