Deposited some scrap just to try things out, worked fine. Trying to trade to get my scrap back, errors left and right, and whenever it finally gets through to let both myself and the bot click Make Trade, I get an error and no items have been exchanged.

EDIT: Issue resolved itself after ~45 minutes, guess Steam was just broken.

I've been having this same issue, with multiple bots. Not sure what's up.

I move over 4 keys, they show me the item, we both say ready and I hit confirm. Suddenly I get an error message and the chat says they've canceled and gone offline.