Cross Module Associations.

We have written custom code to implement cross module associations meaning that we have a control that is part of one Module say "Event" which grabs all instances of another Module say "Speaker" and allows the user to select which instances of speaker we want associated to the particular event. If a speaker is associated to an event it will be displayed on the event.

The issue we are encountering is that when one "association" is on a module everything works fine. However, if we have two different associations on the same module neither association will display the values the user selected. For example if the event to speaker association and event to sponsor association are the same content type neither one will display selected values.

Just wondering if anyone has experienced similar behavior.