What is up with WhatsApp's UX?

I have found a UX problem with one of the main features of the popular instant messaging app "WhatsApp" owned by Facebook.

You can read all about it in my case study on medium.com and see the design fix also.

the tracing of WhatsApp was made with sketch and the design + animation was made using Invision studio.

Hit L if you like it, thank you.

Welcome to my design portfolio on Dribbble