I have problem with randomly one way audio during the conferences. Some of participants don’t hear one or more users. After refreshing browser or/and open browser in incognito mode or/and delete cache’a browser everything work properly. Is there any option to debug this problem ?
You’re running a very old version that’s still running on Plan B. Chrome has moved to Unified Plan, so you need to update your Jitsi deployment to the latest version (or any of the 4 preceding versions).
Chrome changed its webRTC implementation and the current stable Chrome has no support for plan-B. Therefore you need a more recent version of Jitsi as @Freddie said