Related-to does not show all options
I have created a few custom modules and all but one of them appears on the "Related to" list in the Activities module.
What have I done wrong? I cannot see any difference in the settings of each of the custom modules, in terms of related lists, lookups and so on.
The Related-top drop-down in the Activities module simply refuses to show the latest custom module I have created.
Any ideas why?
There are 8 options in the drop-down menu and I want the 9th one added...!