My Telegram app is misbehaving; I would see new message notification, but when I tap on it and it opens, I would see only old messages. Also, groups I belong to; sometimes I would see 1,000+ unread messages, but when I open the group, after scrolling past 3-5 messages, no more message appears. I thought it was a temporary issue but it has persisted for a week going to two weeks now. I had to update my app on Play Store but nothing changed. I look forward to your assistance. Thank you!