Anyone on here have KOSPI futures in their system? (I do.)
It looks like the CFTC has revoked their certification (https://www.cftc.gov/IndustryOversight/IndustryFilings/ForeignOrganizationProducts) and Americans are blocked from trading it (generally, there's an exception to close out positions, but last time something like this happened I had to call IB to get a position closed because I couldn't do it through TWS).
Fortunately, I have no open positions in these and I can easily disable trading of an instrument in my system (but leaving it there in case it becomes available again in the future).
I disabled KOSPI in the system after your post. I went to TWS to try to place a trade in KOSPI and KOSPI_mini and I didn't get the trading restriction warning that I usually get with restricted futures. The date on the CFTC page says 2/15 but does it apply immediately?