Hi Ann,
The tile setting looks OK.
Probably some setting is wrong in scenario definition.
Please find the ResolveLink OData service in the network tab of inspect element and check the response.
/sap/opu/odata/UI2/INTEROP/ResolveLink?linkId=%27WorkflowTask-approveRequests%3FOrigin%3DERP800_PGW%252CTS97100180%26scenarioId%3DZ00_ABSENCE%27&shellType=%27FLP%27
The response should have URL like /sap/bc/ui5_ui5/sap/ca_all_apv?Origin=ERP800_PGW%2cTS97100180&scenarioId=Z00_ABSENCE
Regards, Masa
SAP Customer Experience Group - CEG