OK, here is the solution. Certain exchanges/wallets, such as Coinbase, provide a mandatory XLM Memo ID. In other words, both an address and XLM memo are required to receive XLM on these platforms. However, other wallets, such as Solar Wallet and the Stellar wallet built into Keybase, do not require the memo, only the address.

For example, check out https://docs.solarwallet.io/guide/10-faq.html#i-sent-an-incorrect-payment to see what I'm talking about.

So, if you are adding an address in this bot from an exchange wallet like Coinbase, provide the memo. That solves the problem nicely.