PiP not working on viber with ios 17.2

No matter what I do on my Iphone 15 pro max and reset and re-enable disable enable PiP the stuff is not working on Viber at all and background refresh is on also. Please fix this bug as it is annoying and to be honest my first iphone experience and probaly the last if this will not be fixed soon. On android this works smoothly. PiP with viber doesn't work and I reinstalled viber app and made reset settings on iphone but I will not erase everything from my iphone for this to work no way.