Sometimes my whatsapp messenger behaves weird like i send messages to my friends but they didn't receive some of them similarly they send me messages and i don't get those !!
Even 2 ticks show that messages are delivered to them but on their side they didn't got any messages it is happening with the new versions as well. i have tried re-installing and updation as well but no of use!!
My Phone is Galaxy S3 GT-1900
whatsapp version 2.11.444