BC User Properties are not working on Custom BC (on class - CSSBusComp) based on table (S_PROD_INT)

Somehow the BC User Properties are not working on this custom BC - FSI Branding Item BC - All (on class - CSSBusComp) based on table (S_PROD_INT). I was trying to use - Field Read Only Read based on a joined field's value it did not work. Then to narrow down if the joined field is an issue - I tried with another field on the base table, still it did not work. Here is what I am doing:-

1. Created a new calculated field (Code Content Managed Flg) based on another field, here is the calc vlaue - IIF([Code Content Managed] = "Y", "Y", "N"). Tried different flavor - IIF([Code Content Managed] = 'Y', 'Y', 'N').