Video of someone sometimes missing from video group chat

[improvethings]

Description

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We're using this videobridge regularly on a self hosted instance, and often one or more people who are on the call, are no longer visible (but we can still hear everyone).

Current behavior

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It usually works that we can see everyone on the group video chat, but sometimes it does not, how can I debug this more usefully?

Expected Behavior

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I expect everyone on the call to be visible.

Possible Solution

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Sometimes when you click the 4 squares the bottom to change the view it fixes this, but very rarely.

Steps to reproduce

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Unknown what is causing it so far.

Environment details

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Self hosted instance.

[damencho]

Which version of jitsi-meet are you using? What do you see? Do you see the ninja/ghost icon. Share the browser js console logs from such a session.