2898884 - Fiori Upgrade Issue from Fiori 2.0 to Fiori 3.0 shows apps with blank screen

• Upgraded to Fiori 3.0 from 2.0 in which the following issues are faced:
1. Even though Catalogs/groups were assigned to user,the screen kept on coming blank post upgrade.  
2. Once the admin team created a new copy role of existing catalog role,then only we were able to see Catalogs in App finder however the Home page was still coming blank.
3. The Groups are not at all visible post upgrade when the group roles are part of composite role.
4. As a trial when we assigned the Group roles directly as a single role to the user,they became visible in the Home page.

• S/4HANA 1909
• SAP Fiori 2.0 to 3.0

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