Blank page is seen when user performs device back / click on close from NFT viewer page

[ValoraQA]

Frequency : 100%

Repro on build version: Android Play store build V 1.39.1 , Android Internal Release build V 1.40.0, Android Internal Release build V 1.40.1
Repro on device version : Google Pixel 2XL(11.0) , OnePlus 7T (11.0), Google Pixel 4a(12.0)

Does not Repro on build version : iOS App store build V 1.40.0, iOS Test Flight Release build V 1.40.0,iOS Test Flight Release build V 1.40.1
Does not Repro on device version : iPhone 12(14.7.1), iPhone 13mini (15.1.1)

Pre-condition:
1] User must have downloaded main net build
2] User must have completed onboarding flow
3] User must have restored account
4] User must be on homepage

Repro Steps :
1] Tap on view assets button
2] tap on NFT banner seen on view assets page
3] Now perform device back and observe

Bug : Blank page is seen when user performs device back from NFT viewer page

Expected Behavior : It should redirect user to previous page instead of showing blank page

Investigation :

• Same issue is faced when we click on close button from NFT viewer page
• The issue does not reproduce when user kills the app and relaunch the application
• Issue is also faced when user has created an account and has one token in the account

Attachment : blank.mp4
(Bug observed at 0.10 seconds)