Have you solved it yet? I have the same problem now. When login in to a cli wallent to wss://bitshares.openledger.info/ws , I can get the history of my account . But I have a full node,  the get_account_history returns nothing when connected to my full node.

curl --data '{"jsonrpc": "2.0", "method": "get_account_history", "params": ["customminer", "1000"], "id": 1}' http://127.0.0.1:8092/rpc > customminer_account_history.json

If I want to get memo information from this get_account_history , could we this api after login(unlocked)?

I'm using a cli_wallet for further development and stuck by accessing the collateral position from a cli_wallet. Does anyone know how to do that? Thanks!