Hi friends,
Thank you for your asking. Kindly try some stay-at-home troubleshooting tips below:
1. Please try to enter "Safe Mode". If the function works well in Safe Mode yet the issue remains out of Safe Mode, please check on any disturbance from the installed 3rd party apps.
# How to enter and exit "Safe Mode"
[Phone/Pad] How to Enter and Exit Safe Mode? | Official Support | ASUS Global2. Does it appear on the stock camera only or on other camera apps (e,g. Instagram) as well?
Please try clearing cache & storage of Camera (long press "Camera">App Info>Storage & memory>Clear cache/Clear storage), and try to re-install 3rd party camera apps and check again.
3. Does the issue appear after any system/apps download or upgrade?
Please provide me your model name and your firmware version
# Model Name: Settings>System>About phone>Model
Refer to the link below to check the model name by model no. in the link
https://www.asus.com/support/FAQ/1014441/ # Firmware version
Settings>System>About Phone>Software information>Build Number
If you try to update to the latest version, does the issue still remain?