After latest patch multiple Roles change display name

Description of the issue: After latest patch multiple Roles change display name
Account name: Brisbane Convention & Exhibition Centre (BCEC)
Region: APAC
Client version: 26.2
Steps to reproduce:
- Main menu > Roles. Add columns ‘display name’, ‘ID’
- Note that many IDs are having ‘FINANCE’ as display name
- Customer has mentioned that this might have happened after the TEST update on 11th Aug to 26.22026071301
- Only DALE has access to make changes to roles and no changes have been made recently
- Need to find how this change occurred with no trace in audit log
Observed results vs Expected results:
- Random changes in the role details should not occur
What is the job the client is trying to accomplish:
- Investigate the reason it occurred
Business impact if not resolved:
Links to articles where you've looked for solutions and also other steps you've taken to research the issue:
- No reference tickets
- Audit log does not show any changes happened
Link to Zendesk ticket:
- https://ungerboeck.zendesk.com/agent/tickets/395398
Local v30 URL:
https://supportwebap.ungerboeck.com/BCEC_Test_1075964901_USI_V30/app85.cshtml?