Invoking search in launched form

Hello,

 

In my customisation of issue material entry, I have a launch form section to a customised end activity entry, which when launched attempts some auto searches using adapters.

 

These auto searches fail to run, however, instead presenting the following error prompt:

 

The process caller failed to invoke method InvokeSearch in Epicor.Mfg.UI.Searches.EpiSearchEngine in C:\Program Files (x86)\Epicor Software\Epicor905\Client\Epicor.Mfg.UI.EpiClientLib.dll

 

Is this a limitation of process caller, or am I missing something in my code?

 

Thanks,