How to reproduce:
1. Open any Project
2. Navigate to “Project Settings > Services > Diagnostics” and observe the default Build Setting
3. Navigate to “File > Build Profiles” and change “Diagnostic Data” to the opposite option of the default option
4. Add your platform’s Build Profile
5. Observe the “Diagnostic Data” dropdown

Expected result: Shows either “Enabled or Disabled (Project Default)” directly corresponding what is chosen in Project Settings as the default
Actual result: Shows either “Enabled or Disabled (ProjectDefault)” directly corresponding to what was chosen in your Platform’s Build Profile Settings before creating the Build Profile

Reproducible with versions: 6000.2.0b7

Tested on (OS): macOS Sequoia 15.4 (M4)

Note: Platform Build Profile options for the default (enabled/disabled) Diagnostics Data dropdown option does not update visually if the default option has been switched in Project Settings and Platform settings were not set to default settings