I noticed (with cds/common/scripts/checkCompiledMpdel) that isihammaster.mdl is pointing to isi2stagemaster.mdl and hepitemplate.mdl: controls@opsws4:models 0$ cat isihammaster.mdl | grep isi2stagemaster SourceBlock "isi2stagemaster/ISI2STAGE/ST1/SENSCOR/L4CY_BLRMS" SourceBlock "isi2stagemaster/ISI2STAGE/ST1/SENSCOR/L4CY_BLRMS" SourceBlock "isi2stagemaster/ISI2STAGE/ST1/SENSCOR/L4CY_BLRMS" SourceBlock "isi2stagemaster/ISI2STAGE/ST1/SENSCOR/HPI_L4C_X_BLRMS" SourceBlock "isi2stagemaster/ISI2STAGE/ST1/SENSCOR/L4CY_BLRMS" SourceBlock "isi2stagemaster/ISI2STAGE/ST1/SENSCOR/L4CZ_BLRMS" controls@opsws4:models 0$ cat isihammaster.mdl | grep hepitemplate SourceBlock "hepitemplate/HEPI/STSINF" Apparently, when the BLRMS parts were copied, the links were not broken. The same seems to be true for GNDSTSINF. Recommended fix: make a separate library block for BLRMS. Break the link for GNDSTSINF to hepitemplate/HEPI/STSINF.