Is this a weird behavior?

Summary

External training dynamic object

Content

Hi, 

I created an External Training and mapped a user X to it, then I created a External Training DO having all what is needed to show the ETs, and the ability to add and delete trainings => the external training appeared in the list for the user mapped.

Then, with the user X, I created a new External Training using the DO, it was successfully created, but neither it, nor the old ET appeared in the DO list. I then opened the Control Panel, and checked them, they both appeared and have user X in the list of Approved users.