2473114 - Cannot launch Smart Business for SOH or other Fiori applications after upgrade of SAP_UI component from 7.40 to 7.50

• After upgrading SAP_UI component from 7.40 to 7.50, applications cannot be launched from Fiori Launchpad.
• The browser throws a generic "Could not open app. Please try again later." error.
• Console logs show "Failed to load U5 component for navigation intent" error along with "500 (Internal Server error)" and "System Alias not assigned to user <user_name> and service <service_name>"

SAP NetWeaver 7.5

Failed to load U5 component for navigation intent, 500 (Internal Server error), internal server error, System Alias not assigned to user, service, smart business for SoH, Suite on Hana, SAP_UI component upgrade, cannot open Fiori applications after upgrade, Could not open app , KBA , CA-FE-FLP-EU , Please use CA-FLP-FE-UI , CA-UI2-INT-FE , Please use CA-FLP-FE-COR , CA-UI2-INT-BE , Please use CA-FLP-ABA , CA-GTF-SB-SOH , SoH , Problem