RUNPROGRAM_PROCESSID issue

[CREvans]

I'm trying to do some parallel tasks and am using a method similar to the example chain.bld program. This works as long as the child builds are set to not wait for completion. However, if I set them (either accidently or on purpose) to wait until completion the vbld_StepDone() fails because the RUNPROGRAM_PROCESSID macro doesn't get created. It appears as if this macro is only being created if the child is not set to wait until completion before continuing.

I know typically one wouldn't want to run things in parallel, but have one of the tasks wait until completion, but we are.

Is this a bug, or expected behavior? I can code around the issue if needed, but want to wait to make sure it's not a bug first.

Thanks!
Scott