Bot stop answering after adding it to a group

[federico-carbone]

Hi, the bot works great until I add it to a group. It stops answering without any crashes or error. Delete the bot and create a new one made it works again, until added to a group.

[Spixmaster]

Try it with my repository: https://github.com/Spixmaster/telegram-bot-api

[zamazan4ik]

@fedebone00 cannot reproduce with my Telegram bot based on TgBot library: https://github.com/ZaMaZaN4iK/npaperbot-telegram