WhatsApp Delivery and Read Receipts Stopped Working

Since around 8:00 AM today, I have been experiencing a serious issue with message delivery information in the WhatsApp application. Even though I am actively chatting with the other person in real time, all of the messages I send remain stuck on a single gray tick. I cannot see double ticks or read receipts at all. In addition, even though my privacy settings and read receipt settings are fully enabled, the issue still continues. The same problem happens with everyone I message, not just a single contact.

I also contacted the WhatsApp Help Center regarding this issue, but no effective solution has been provided and the problem is still ongoing. I do not want any limitations or restrictions on my application, and being unable to see delivery and read information is seriously disrupting my communication.

I request that my account and application be technically investigated, that any possible restriction or system issue affecting my account be removed, and that message delivery/read receipt functions return to working normally again as soon as possible.