Have problem when moderation enable "lobby mode"

The problem is when owner(moderation) enable “lobby mode”, after that his internet is interrupt and he try to rejoin that room, but he can not join to that room because his previous session still exist(I think so) and he need the owner to accept his joining
there is the way to fix that problem
another problem is when user abc@domain.com is disconnected and rejoin after that 1-2 second, and in the user panel we can see duplicated user abc@domain.com

thank you for reading

That is normal when someone loses connectivity and reloads, the ghost user should disappear in up to 60 seconds.

Is this your deployment or meet.jit.si? Attaching logs from the js console of the browser will be helpful. If ti is your deployment what it the jitsi-meet version installed?