Nice work applying the format. Sorry for the bump in the road. Let's see if the format works in CAS but outside of VA. Can you try running the following in SAS Studio? (You can run all of these CAS actions together but I separated them to help isolate the problem if something fails)

proc cas;
table.columninfo / table="B130082_OP_ORDER" ;
run ; quit ;

proc cas;
table.columninfo / table="B130082_OP_ORDER_stg" ;
run ; quit ;

proc cas; table.fetch /
table={name='B130082_OP_ORDER',caslib='public'}
/*fetchvars={{name='xxx',format='xxx'}}*/
format=TRUE
quit;

proc cas; table.fetch /
table={name='B130082_OP_ORDER_stg',caslib='public'}
/*fetchvars={{name='xxx',format='xxx'}}*/
format=TRUE
quit;