Adding a custom calculated attribute in MUX on Investment object and the field should be locked for editing, and it's not.
Compare to OOTB Overall Status field on object Status Report
STEPS TO REPRODUCE
Expected Results: The custom Aggregated Calculated Attribute "Overall Status Indicator" should not be editable
Actual Results: The custom Aggregated Calculated Attribute "Overall Status Indicator" is editable in both Project Properties and Grid (and possibly on other screens)
Workaround: None
Release : 16.1.1
This is DE68874, Not a Bug
ACA should work as expected in 16.1.1