Field read-only for rest except Admins

[AmenaA]

Disabled an ACL that was created to make the "Change request" field read-only on the Incident form. This works fine on one of the environment. When moved to second testing environment, over there, "Admins" can write on the "Change request" field on the closure of Incident, as for others can't. 

How do I check what's causing the field to be read-only for the rest, even thou that one ACL causing it was disabled.

There is no client scripts using the field to make it read-only on closure.

[Jordan Vignoni]

It seems there is another access control with "Admin overrides" checked, perhaps.  I would use "Debug Security" and impersonate those users who cannot edit the field to determine the access control blocking the access.

[AmenaA · Accepted solution]

Caused by ACl's overriding on each other.

Used Access Analyzer to figure out what ACL was causing the read access for an individual to be blocked.