Solution : https://service.sap.com/sap/support/notes/1455893 (SAP Service marketplace login required)
Key words :
web dynpro abap reason, web dynpro trace tool, pressing <ctrl>-<alt>-, trace tool, general trace, context trace, terms wd_trace_tool, solution import, support package, transaction wd_trace_tool
Related Notes :
| 999992 | WD ABAP: Analyzing context problems |
| 894159 |