Issue Summary

Unable to update the release track settings when the org has a large number of sites. As an admin of a large enterprise organisation, not being able to control this feature affects site management capability. 

Steps to Reproduce

1. Go to admin.atlassian.com. Select your organization if you have more than one.
2. Select Products > Release tracks
3. Click Change track to update the track type
4. A prompt is generated to select the track type and click Confirm

Expected Results

The release track is updated for the selected site

Actual Results

It fails with error 504 Gateway timeout and the change is not reflected

Workaround

None. Contact Atlassian support.