Custom tables not showing in designer but in object browser

I have created two new custom tables(CCC_Building, CCC_LocationType) and extended the Person table with foreign key reference of the UID of these two custom tables.

Made these changes in dev environment and moved to next environment(RTE), its working fine.

Further when I push it to pre-prod, in the Object Browser tables I can see the data.

In DialogTable, DialogColumn, DialogcolumnGroupRight I can see the data. But when I try to search for the newly added columns in Person table in OB I cannot see that.

When I open designer and try to check under 'Edit Permissions' and 'View Permissions', I can see the tables but no permission are there. I manually added the permission but when I try to expand the tables,

it gives an error , CCC_Buildingtable/CCC_LocationType doesn't exists.

I even checked the schema of 'Person' table, I can see the new columns.

Any Idea what is causing this issue only in Pre-prod ?

I tried to clear cache but its not working.

Thanks in Advance Slight smile