AnaMan, I am using a dynamic model thing for the initial data, and I'm using the output variable in that model. I think that might be the problem. I'll take a look at it and let you know.
Here's the extremely helpful error from the log viewer:
System.Exception: Execution Exception ---> System.Exception: exception component created: ---> LogicBase.Framework.BusinessRuleException: The critical error failed execution on component App Details : Object reference not set to an instance of an object. : at LogicBase.Components.FormBuilder.DatePickerComponentRenderer.PreRender() at LogicBase.Components.FormBuilder.Core.FormComponentRenderer`1.LogicBase.Components.FormBuilder.Core.IFormComponentRenderer.PreRender() at LogicBase.Components.FormBuilder.FormBuilderComponentRenderer.PreRender() at LogicBase.Core.Models.Dialog.ComposerForm.OnPreRender(EventArgs e)
--- End of inner exception stack trace ---
at LogicBase.Core.ExecutionEngine.ExceptionComponentDelegate.Execute(IData data, IOrchestrationComponent comp, String& outputPath, IExecutionEngine engine, TLExecutionContext context)
--- End of inner exception stack trace ---
at LogicBase.Core.ExecutionEngine.AbstractExecutionEngine.RunEngine(List`1 executionQueue)