Issue:
Osiris Piece Box and Osiris Piece Cart have no Compendium descriptions because their history files link to the wrong language strings.
OsirisPieceBox.txt links to STR_HISTORY_TECHS_MYTHICAGEOSIRISPIECEBOX
OsirisPieceCart.txt links to STR_HISTORY_TECHS_MYTHICAGEOSIRISPIECECART
Those strings don’t exist. It looks like their history files were copied and incorrectly modified from Osiris.txt.
The correct string for both is STR_HISTORY_UNITS_OSIRISPIECEBOX