Solution : https://service.sap.com/sap/support/notes/1033496 (SAP Service marketplace login required)
Key words :
web dynpro abap framework checks, web dynpro abap applications run, sap previously recommended preventing, application parameter wdforceexternalstylesheet deactivates, web dynpro application wd_global_setting, web dynpro applications, abap stylesheets reason, service level status, web dynpro, enterprise portal
Related Notes :
1446099 | Web Dynpro application not displayed in customer theme |
1000889 | CSS Style Sheet Integration of Web Dynpro and the Portal |