WhatsApp Android users are getting a notification on their devices that they have been logged out of WhatsApp, but you might not need to worry about it. Every source suggests that this is due to a bug being present in WhatsApp Messenger App.
“Your phone number is no longer registered with WhatsApp on this phone. This might be because you registered it on another phone. If you didn't do this, verify your phone number to log back into your account”. Some Android users received this message on their phone’s screen when they opened WhatsApp.
WABETAINFO which tracks all the advancements of WhatsApp said that the issue arose because of a bug and nothing to worry about. For those unaware, WaBetaInfo is an online platform that keeps track of new updates and developments coming to WhatsApp.
The official Twitter of WABETINFO looks something like this,
If you have been recently logged out from WhatsApp, on WhatsApp for Android, don't worry: it's a bug. You can log into WhatsApp again. pic.twitter.com/SnhFzUd5jP— WABetaInfo (@WABetaInfo) August 8, 2021
Still, there is no official statement from Facebook in regard to this issue. Recently, WhatsApp rolled out multi-device support to a limited number of testers. The new feature will allow users to use WhatsApp on their smartphone and up to four other non-phone devices simultaneously — even if your phone battery is dead. This means that users will be able to link companion devices without the need to keep their phones connected.