Hi
John_eman and
leosusanto@gmail.comThank you for your asking. Kindly provide the information below so that we could better assist you.
1. Model Name: Settings>System>About phone
Refer to the link below to check the model name by model no. in the link
https://www.asus.com/support/FAQ/1014441/ Is File Manager your stock app in your phone?
2. What is your current firmware version?
Setting >System>About Phone>Software information
3. What is your current File Manager version?
Settings>Apps & notifications>See all>App info>File Manager>Advanced>version no. at the bottom
If you try to update to the latest version, does the issue still remain?