Predecessor action not executed when Mutilple UC's in single RFC

Hello All,

I have query like when there are 3 UC's in one RFC, when all the UC's are in implemented status the corresponding RFC does not go to implemented status.

But when there is single UC in an RFC, when UC is in implemented status and corresponding RFC goes to implemented status.

Any idea how to fix the issue

Thanks and Regards

Praveena Bingi