No idea, they've been using a buggy stale version of FatFs for 3+ years. The one shipped flags internal failures on larger media.
Someone in ST management needs to wake-up. Need to focus on delivering current versions of third-party libraries, and fixing deliverables.
Vote on Jan's wish list, post your request there also
https://community.st.com/s/ideazone#0873W000000PAyzQAG
