Today during a game with Lord Rattington, the bot got stuck immediately after playing Weaver (from Hinterlands). I had no way out except resigning (even though I was winning). It may or may not be relevant that Villa was in the card pool, that I'd passed Weaver to the bot when processing the bot's Masquerade, and Weaver was Friendly.
Thanks for the report. The bot hanging on playing Weaver is a known but unfortunately not fixed bug.