"Hello, I am not a developer, but I have a problem with Viber. Audio messages are not downloading, and pictures are loading poorly. This happened after I switched from my Samsung to an iPhone 14 Pro Max. I've tried reinstalling, the internet is good, and my girlfriend with the same phone has a similar issue."
viber on iphone 14pro max
Sorry but we can't help you with third party applications, contact the developer of Viber instead and let them know what problems you're facing.