Error on using MAKEDEP hint within union

The following anon proc block fails with error TEIID30226 Remote org.teiid.api.exception.query.QueryProcessingException: TEIID30226 Temporary table "table_spaces_v6" does not exist

BEGIN
create local temporary table ssid_version (sysplex varchar, lpar varchar, ssid varchar, version varchar);
insert into ssid_version(sysplex, lpar, ssid, version) values ('plex1', 'ca11', 'd91a', 'v5');
insert into ssid_version(sysplex, lpar, ssid, version) values ('plex1', 'ca11', 'd91b', 'v6');

create local temporary table table_spaces_v5 (sysplex varchar, lpar varchar, ssid varchar, table_space_id varchar);
insert into table_spaces_v5 (sysplex, lpar, ssid, table_space_id) values ('plex1', 'ca11', 'd91a', 'ts1');

create local temporary table table_spaces_v6 (sysplex varchar, lpar varchar, ssid varchar, table_space_id varchar);
insert into table_spaces_v6 (sysplex, lpar, ssid, table_space_id) values ('plex1', 'ca11', 'd91b', 'ts2');

select table_space_id from
(
select * from (select v.sysplex, v.lpar, v.ssid, t.table_space_id from ssid_version v join table_spaces_v5 t on t.sysplex=v.sysplex and t.lpar=v.lpar and t.ssid=v.ssid option makedep table_spaces_v5) t
union all
select * from (select v.sysplex, v.lpar, v.ssid, t.table_space_id from ssid_version v join table_spaces_v6 t on t.sysplex=v.sysplex and t.lpar=v.lpar and t.ssid=v.ssid option makedep table_spaces_v6) t
) t
where ssid='d91a';
END

It also fails when the /*+ MAKEDEP */ form is used instead of "option makedep"

I don't believe there should be any failure