• Your Rocket.Chat Experimental app version: 4.9.0.2132
• Your Rocket.Chat server version: 3.4.2 (managed)
• Device (or Simulator) you're running with: Xiaomi Mi 9T (MIUI 12.0.2 Stable)

The application is unable to show one group chat. The chat is displayed for a second and then app crashes.
Error:

com.facebook.react.common.JavascriptException:
TypeError: Cannot read propery 'username' of Null	

full bug report here
https://pastebin.com/Nur4gCRX