Just a quick bug report for Lemmy 0.18.3:
Today I received a reply from a bot account. I have the setting set to not show bot accounts enabled for my account. I still got a notification that I had a reply from it (next to the notification icon), but there was no way to mark the notification as “read” because it doesn’t appear in the inbox. The only workaround was to check the “Show Bot Accounts” setting and then visit the inbox to clear the notification.