Solution : https://service.sap.com/sap/support/notes/1043988 (SAP Service marketplace login required)
Key words :
workflow manager solution implement, restart faulty workflow instances, if_swf_wfm_cmp_fact_wfm~load_wim_context method, saving transaction data, workflow instances, runtime error, short dump, objects_objref_not_assigned_no occurs, cl_swf_wfm_component_factory class, status changed
Related Notes :
1068627 | Composite note about workflow upgrade |
991585 | Error during update in table SWPNODE |