When did this happen? I mean your btc withdrawal on the platform? Is the selling of FUN to BTC is instant? Or need to wait too, is this something like trading? I guess OP should should try and follow this to prevent future problems there. Not unless OP really wants to get FUN instead of BTC.
Yesterday during the day. FUN to BTC selloff was instant, except you need to do in 30kFUN batches, but other than that, no problem.
After that i did a BTC withdrawal request, which took about 6 hours to process, and it did in the end