I can not cover a short position (I think I'm doing it right way, and have sufficient funds...):
dxtr-wallet (unlocked) >>> blockchain_market_list_shorts USD
TYPE QUANTITY PRICE BALANCE COST COLLATERAL ID
--------------------------------------------------------------------------------------------------------------------------------
short_order 111.11111 XTS 0.9 USD / XTS 111.11111 XTS 99.9999 USD N/A XTS7H8Bnrk5iFHP9rXcj6Kj5VJPRbd6aWJPz
dxtr-wallet (unlocked) >>> wallet_market_cover dxtr 10 USD XTS7H8Bnrk5iFHP9rXcj6Kj5VJPRbd6aWJPz
10 assert_exception: Assert Exception
order_to_cover.valid():
{}
th_a wallet.cpp:3215 cover_short
{"from_account_name":"dxtr","real_quantity_usd":10,"quote_symbol":"USD","owner_address":"XTS7H8Bnrk5iFHP9rXcj6Kj5VJPRbd6aWJPz","sign":true}
th_a wallet.cpp:3288 cover_short
{}
th_a common_api_client.cpp:1299 wallet_market_cover
{"command":"wallet_market_cover"}
th_a cli.cpp:538 execute_command