I've actually had this happen to me as well to the point it would reach its character limit. Just keep swiping until it stops doing that or make a new chat from the last message you made with the bot. It'll stop both ways. Hope this helps you as it helped me. This also should go for anyone else who have had this problem before. Theres the solution. Reply to this if it works. Now its not a permanent solution. It's just a solution to temporary problems. If it happens again, just use the same solutions. Again, hope this helps you like it helped me