Hi, I am been facing this same issue where I was showing on another call on Whatsapp for around 15 minutes while I was away from my mobile device instead I was working. It’s really very disappointing that WhatsApp doesn’t fix this issue as it creates a lot of misunderstanding and we don’t have any sort of proof to prove ourselves that we are actually saying the truth.
I am sharing my personal experience because people like us are actually facing this issue till now and it creates a lot of havoc(confusion) in our lives. It also leads to making situation a lot more worse than we really think.
Also, contacted support to send my call log details but haven’t got any proper response yet.
I hope it might help people like me who are dealing with this issue.