What's app status problem

I want to know that if someone once blocked me than unblock again, during the time I didn't update my WhatsApp , now problem is that my status is not visible to him but I never hide my status to anyone. Could it be a technical problem ? Because I never changed my status setting before and after . If my status is visible to others than why not to him. He is also in my phone account. I can see his status ,last seen, everything than what's with my status. Had someone ever hv same problem?

Thanks..but my question was different. I don't need any solution ... There's some trust issues. I never change my status setting to hide it to someone than y it was not appeared to a particular person that time. The person who once blocked me than unblocked again.during that time I didn't update my WhatsApp .I just want to know cudn't that happened because of some error. I wanna know Abt WhatsApp accuracy. Coz I did nothing . I just want to know Abt this app's accuracy?