I made 2 short orders on bitBTC/BTSX market and I can't cancel both of them !
TYPE PRICE (BTSX/BITBTC) QUANTITY (BITBTC) COST (BTSX) COLLATERAL (BTSX) ACTION
Short 15,500.00 1.00 15,500.00 canceling..
Short 15,800.00 1.00000000 15,799.99999 canceling..
RPC Server Error: In method 'wallet_market_cancel_order': unknown market order (20011)