Starting with the release of Strategy ONE (March 2024), dossiers are also known as dashboards.
In Strategy 2021 Update 5.1 after upgraded from 2019 Update 3, execute a dossier, and try to export one of the grid Widget to Excel get below error:

(Index out of rangeError in Process method of Component: ExportEngineServer, Project BCMWare C2-Confidential, Job 1344, Error Code = -2147217384.)
Below error is caught in DSSErrors.log:
2022-05-02 15:18:40.925+02:00 [HOST:xxxxxxxxxx][SERVER:CastorServer][PID:31528][THR:140672946575104][Object Server][Error][0x80041018][UID:8D219AE54D383E7A3D2A999BF20EF06F][SID:B5AF1EE03683AF752E6DFAC54E8E6E5C][OID:8544BCA7DE4E99A969FA7197D756D41B][CDSSPropertySet.cpp:171] Index out of range2022-05-02 15:18:40.925+02:00 [HOST: xxxxxxxxxx][SERVER:CastorServer][PID:31528][THR:140672946575104][Export Engine][Error][UID:8D219AE54D383E7A3D2A999BF20EF06F][SID:B5AF1EE03683AF752E6DFAC54E8E6E5C][OID:8544BCA7DE4E99A969FA7197D756D41B][DSSExporter.cpp:3206] CDSSExporter::ExportDocument3: Document name XXXXXX, id 8544BCA7DE4E99A969FA7197D756D41B, format 1, FAILED hr = 0x80041018.
Metadata is still in Strategy 2019 Update 3.
Export engine is trying to access a property which is defined after Strategy 2019 while the metadata is not upgraded, Intelligence Server cannot find the property thus raises the error 'index out of range'.
Upgrade metadata using the Configuration Wizard
For Windows, refer to Metadata Update Process .
For Linux, refer to Metadata Update Process .