Assembly Sequence - From Creo Illustrate

Hi, I have a fully finished assembly in Creo Illustrate.

To create Assembly Sequence, hided all the parts and captured as Figure 1.

In the figure added the steps as a assembly sequence. But when I play in Studio, I could not play the Assembly sequences.

But I could play the dis assembly sequences.

Let me know if there are any solutions.

Regards,

Thadeus.D