Are you sure you are not hitting SetPlayerModel Crash when you have too much .ymts assigned to a freemode ped model - this limit? creaturemetadata .ymt’s also are counted to this limit. (And this topic doesn’t even say crash-hash names so you can’t even search them properly and find this topic…)
And please, don’t post “do you know how to fix this crash” in tutorial related topic 
Unfortunately I don’t know how to “read dumps” or anything related to crashes. You would need to wait for anyone who can do such for example @nta - but unfortunately I don’t know if dumps from 2189 have enought information inside of them, and bubble doesn’t know much about clothing section in GTA 
Best probably would be sending repro resource that generates that crash everytime, even on bare server without any scripts.
That button to generate creaturemetadata file in my YMTEditor was made only by looking in original GTA files, i’m not sure in 100% how all fields inside of it works, maybe I did something wrong?