There is one more minor thing. One can use SQL LIKE template characters in the search field (% and _). It is more like a feature but as it is not documented somebody could think search is working not as expected, entering '100%' but receiving same as for '100'.
Yeah, I'll leave it as it is.
found a problem relating to having a negative balance,
This is working as intended. Leveraged positions which stay open overnight/over the weekend can be force-closed with negative values and can therefore lead to negative account balances. We can't/won't force people to give us the Bitcoins they owe us, but if they want to use 1Broker again they have to. (Double accounts violate the TOS)