If this is true, I will definitely ask for for scores to be re-checked.
If they confirm, after a re-check, that you still fail, I would focus more on soft skills like empathy, ethics and communication.
It is also essential to identify red flag/safety issues, and failure to do so can jeopardize your score (i.e. sending someone home with cardiac chest pain without urgent cardiac consult, failure to remind someone with potential dx of HIV to avoid sexual intercourse, failure to remind someone with possible seizure d/o to avoid driving, sending home a pregnant patient who presented with headache, and HTN w/o further workup or OBS consult etc). Sounds common sense, but you won't believe how many candidates actually fail to recognize these.
LMCC2 is essentially a family medicine exam. No other specialty will better prepare you for it, and it is very, very unusual for family medicine residents to fail twice, even with the now higher passing mark. When I was studying for it, my Pathology friends were envious of the advantages I've got over them (they had neither done a neuro exam nor taken a psych hx in >2 years).