Picture in Picture(PiP) mode if i open app create new instance in Flutter

I have created the meeting app in flutter using the jitsi_meet flutter package in that first I get the inputs from users like room name, display name, etc. After clicking on the button meeting get started when I press the home button it meeting go to PiP mode (Picture in Picture mode). When I am in pip mode I click on my flutter app it creates a new instance of the app and does not continue the meeting or go back to the meeting and the meeting is still running in pip mode. If I click on the pip screen it goes to the meeting but clicking on the app creates a new instance.