2727455 - Random error: "Failed to retrieve the cube for connection SAP_BW_Generic (FBE60502)" when scheduling many publications at the same time

• When scheduling many publications simultaneously having as source huge Web Intelligence documents based on Bex queries, this error is displayed randomly: "Failed to retrieve the cube for connection SAP_BW_Generic (FBE60502)".
• The traces of the Adaptive Processing Server hosting the DSL Bridge service contain the following error:

Exception in thread "DT Query Wrapper Factory" com.sap.ip.bi.base.application.exceptions.AbortMessageRuntimeException: Termination message sent 
ERROR MC (601): Object requested is currently locked by user SAPBOBI_EN
 MSGV1: SAPBOBI_EN
 MSGV2: E_RSRREPDIR
ABEND SY (530):
An exception was raised‑

• The traces of the Web Intelligence Processing Server contain this error:

Exception caught in SL Service: Failed to retrieve the cube for connection SAP_BW_Generic.
com.sap.sl.edp.datasource.olap.generation.impl.AbstractUniverseGenerator$CannotGetCubeFromConnectionException: Failed to retrieve the cube for connection SAP_BW_Generic.
at com.sap.sl.edp.datasource.olap.generation.impl.AbstractUniverseGenerator.getOlapUniverseBuilder(AbstractUniverseGenerator.java:289)

SAP BusinessObjects Business Intelligence platform 4.2 SP2 Patch2

Multiple, big data, webi, APS, WPS, size, intermittent. , KBA , BI-BIP-PUB , Publishing and scheduling in InfoView/BI launch pad , Problem