No Boundary Event in Automated Activity

Hello Experts,

I am developing a BPM in PI 7.31 SP4. I want to add a boundary event in my Automated Activity but when I try to add it the pop up shows me no Options. I expected to have at least a TehcnicalError but there are no one.

As you can see in the image here is no "package" where I can select the boundary.

And for instance for Human activities I can select several boundary events.

Have anyone any idea about what is happening?

For Automated Activities:

.

For Human Activities:

Thanks