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I just emailed you and updated model. There were orphaned base and sub-surfaces in the model that were crashing the forward translation from OSM to IDF. I resolved them by running the Remove Orphan Objects and Unused Resources measure from BCL.

**INITIAL CONDITION**
The model started with 2252 objects.
**FINAL CONDITION**
The model finished with 2242 objects.
**INFO MESSAGES**
No orphan space infiltration objects were found
No orphan design specification outdoor air objects were found
No orphan load instance objects were found
Removing orphan base surface named Surface 428
Removing orphan base surface named Surface 673
Removing orphan sub surface named Sub Surface 1
Removing orphan sub surface named Sub Surface 3
Removing orphan sub surface named Sub Surface 4
Removing orphan sub surface named Sub Surface 6
Removing orphan sub surface named Sub Surface 7
Removing orphan sub surface named Sub Surface 9
No orphan shading surfaces were found
No orphan interior partition surfaces were found
no orphaned LifeCycleCost objects were found

After this you can export to IDF without any issues. You should be able to run this measure in the OS app with "Apply Measures Now", but for some reason measure are all exporting to IDF when trying to calculate arguments, which prevents this. I ran the measure on the OSM outside of a GUI, but that shouldn't be necessary. I'll look into that.

Looks like this

instead of this