Share Audio, Participants hearing back echo/own-sound

Hi, we are using our own Jitsi Server. Problem we are facing is that when a person share his screen and also share audio (system sound) then if any other participant speaks in between, asks any question etc. then he hears back his own sound. Person who’s sharing screen with system audio is using Chrome and other participant were either on Android or Chrome etc. Is there any solution or work around so that the other participants don’t hear back their sound. Everybody was using Headphones. Please help as it’s becoming very problematic for our sessions.