Me too! Same thing. It’s annoying. Looks like one month later no one at Koinly replied. Although it’s probably more of a OkCoin thing? Either way, grrrr.
I had the same problem. The only way around it appears to be downloading csv documents from OKCoin. But because OKCoin doesn’t make anything simple, the documents are a total mess and Koinly can’t accept them. So you basically have to piece together your own csv from the data they give you.