Hi, what happens if the bot buy some altcoin and can't fullfill the sell?

eg:
Bot Buy XMR ok (pair BTC_XMR)
Bot Buy BCN ok (pair XMR_BCN)
Bot cant Sell BCN (pair BTC_BCN)

I only see the bank option for ETH and XMR. The bot maintain bank for all coins? Or it will sell BCN without profit?

Thanks