HUC 05120202 partially covers a county that doesn't have the FEMA NFHL, which is causing a couple of odd things to happen. 1) The floodplain adjustment isn't applied in the missing county and 2) GMS catchments are dropped when the level path re-enters the NFHL domain.

Catchments layer:
/previous_fim/hand_4_8_1_0/05120202/branches/1038000010/gw_catchments_reaches_filtered_addedAttributes_crosswalked_1038000010.gpkg