WhatsApp beta bug breaks chat history -- here's what's going on

Not able to see older messages on WhatsApp? You're not the only one. WhatsApp just rolled out two new features to its platform: multi-device beta that lets you stay logged in to four devices at once without requiring your phone, and View Once photos and videos that disappear after they've been opened once. But with the update to WhatsApp beta 2.21.16.9, there is a peculiar bug that prevents you from seeing older chat messages. I noticed the bug over the weekend: in any given conversation, I can ...