Recent List for Custom Entities

Hello all,

I have created two new custom entities using the entity wizard. These should come with the recent list working. On my custom ASP page I have the following:

//Set the context to our custom entity
CRM.SetContext("MFB_Oppo", UseId);

And the records are all present and correct as per the legendary Jeffs instructions here: https://community.sagecrm.com/partner_community/b/hints_tips_and_tricks/archive/2007/08/29/recent-list-customisation.aspx

However, nothing appears in the recent list. mfbc_name does exist, and MFB_Oppo is the name of the entity. I have tried the asp page custom caption entry with the custom pages path (as in Jeffs article) and without (which is what the entity wizard produces by default).

This did work of V7.1, on V7.2 it appears to have stopped working.

Does anyone have any suggestions?