Jitsi always open in new window opens multiple windows or reloads every 15 seconds

Description:

Jitsi video conference "always open in new window" opens multiple windows or reloads every 15 seconds when clicking on phone symbol in direct chat

Steps to reproduce:

1. activate video conference ; Jitsi ; domain: meet.jit.si or local ; URL room prefix: somecustomxyz; SSL: true; Always Open in New Window: true; URL room suffix: (empty) ; Enable in channels: true
2. open direct chat with another user or channel
3. click on phone symbol

Expected behavior:

Only one Jitsi window opens and web conference stays open until window is closed

Actual behavior:

In browser: multiple popups open ; Jitsi web conference reloads every 15 seconds and asks for microphone and camera permissions and your name
(If I open the same meet.jit.si room URL in another browser window, it does not reload)

In Electron app: multiple popups open

Server Setup Information:

• Version of Rocket.Chat Server: 3.8.0-develop ( or 3.6.2 snap)
• Operating System: Ubuntu 18.04
• Deployment Method: git (snap)
• Number of Running Instances: 1
• NodeJS Version: v12.18.4 (v12.16.1)
• MongoDB Version: 4.2.8 (3.6.14)

Client Setup Information

• Desktop App or Browser Version: Chrome 86; Mac App Store 3.0.3 (or git 3.0.6)
• Operating System: Mac OSX 10.15.7

Relevant logs:

In Mac App Store App Devtools:
Uncaught (in promise) TypeError: Cannot read property 'hasOwnProperty' of undefined
at RealAppsEngineUIHost. (modules.js?hash=b41653c1341b424f4ddc233723b2ce152178a767:31621)
at Generator.next ()
at modules.js?hash=b41653c1341b424f4ddc233723b2ce152178a767:31589
at new Promise ()
at __awaiter (modules.js?hash=b41653c1341b424f4ddc233723b2ce152178a767:31566)
at modules.js?hash=b41653c1341b424f4ddc233723b2ce152178a767:31620
(anonymous) @ modules.js?hash=b41653c1341b424f4ddc233723b2ce152178a767:31621
(anonymous) @ modules.js?hash=b41653c1341b424f4ddc233723b2ce152178a767:31589
__awaiter @ modules.js?hash=b41653c1341b424f4ddc233723b2ce152178a767:31566
(anonymous) @ modules.js?hash=b41653c1341b424f4ddc233723b2ce152178a767:31620

No server log entries when opening the video conference

Start at the Jitsi video-conference configuration and the phone-symbol action in direct chats, then reproduce the behavior in a browser and the Electron app while inspecting the reported DevTools error. Done means clicking the phone symbol opens one conference window that remains open without repeated reloads or renewed permission prompts.