Unable to remove uchg user immutable flag/lock with root user

Current app file permissions: When I run # file location cd /Applications # show flags ls -lO | grep # "drwxr-xr-x 3 root wheel uchg 96 Dec 1 2021 .app" # via sudo, fails sudo chflags nouchg .app # via su, fails su root chflags nouchg .app I get chflags: .app: Operation not permitted I've already tried disabling system integrity protection, and granting full disk access to Terminal, and changing file owner to myself. csrutil status # "System Integrity Protection status: disabled." sudo chown .app # "chown: .app: Operation not permitted" How do I unlock this file? Also posted at discussions.apple.com.

Unable to remove uchg user immutable flag/lock with root user

Current app file permissions:

file permissions

When I run

# file location
cd /Applications

# show flags
ls -lO | grep 
# "drwxr-xr-x  3 root            wheel  uchg        96 Dec  1  2021 .app"

# via sudo, fails
sudo chflags nouchg .app

# via su, fails
su root
chflags nouchg .app

I get

chflags: .app: Operation not permitted

I've already tried disabling system integrity protection, and granting full disk access to Terminal, and changing file owner to myself.

csrutil status
# "System Integrity Protection status: disabled."

sudo chown  .app
# "chown: .app: Operation not permitted"

How do I unlock this file?

Also posted at discussions.apple.com.