This is an known issue when using tables/databases that are not tracked in the journal. Please add the files to the journal and restart the mapping:
Until Version 2.8
STRJRNPF FILE(BIBLIOTHEK/FILE) JRN(IEFFECT/EDIJRN) IMAGES(*BOTH)
Version 2.8 and higher
STRJRNPF FILE(BIBLIOTHEK/FILE) JRN(IEFFECTDB/EDIJRN) IMAGES(*BOTH)