3322424 - Crystal Reports 2020 Viewer SP3 crashes with error "com/sap/sl/queryspec/QuerySpec " when opening any document

•  CRViewer 4.3 SP3 Patch_COR chrashes with error "com/sap/sl/queryspec/QuerySpec - [CRSDK00001075]" when opening any report (local RPT or from the repository)
• The error message is:
  com/sap/sl/queryspec/QuerySpec - [CRSDK00001075]
   Caused by: com/sap/sl/queryspec/QuerySpec - [Internal Error ClassNgetDeclaredMethods0]
   Caused by: com.sap.sl.queryspec.QuerySpec cannot be found by com.businessobjects.crystalreports.crsdk_14.3.3.r4473_v20230115 - [Internal Error BundleLoaderL511]

SAP Crystal Reports Viewer 2020

Try to open Crystal Report in Viewer

Product Regression

1. Go to the folder where Crystal Reports for Enterprise 4.3  installed ("C:\Program Files (x86)\SAP BusinessObjects\Crystal Reports for Enterprise XI 4.0\plugins")
2. Copy the files "slf4j-api-1.7.30.jar" and "slf4j-jdk14-1.7.30.jar"
3. Paste them in the "plugins" folder of the CR Viewer install ("C:\Program Files (x86)\Crystal Reports Viewer\SAP Crystal Reports viewer\plugins")
4. Go to the folder "com.businessobjects.crystalreports.designer.crsdk.viewer.lib_14.3.3" ("C:\Program Files (x86)\Crystal Reports Viewer\SAP Crystal Reports viewer\plugins\com.businessobjects.crystalreports.designer.crsdk.viewer.lib_14.3.3")
5. Go then in "META-INF" subfolder, and edit the "MANIFEST.MF" file
6. Remove "com.businessobjects.mds.olap.protocol.sapbapi," from Line 21
7. Save and close the file
8. Remove the folder "Crystal Reports Viewer 2013" from "%AppData%\Business Objects"
9. Run CR Viewer
10. You can now open any document successfully.

KBA , BI-RA-CRV , SAP Crystal Reports Viewer , Problem