A conversation in pending doesn't close when resolved by Bot

Hello,

When a conversation hand-off from a bot reaches lithium, and the conversation gets put into "Pending" because it is awaiting a response from the user, but then the conversation then is considered "resolved" by the bot, the conversation is stuck in the pending list and never closes.

Is this a known issue, or is there a way to fix this? I should note that in my Account Admin settings, I do have "Conversation Handling when resolved by Bot" as set to "Close as resolved."