Insight custom field picker (Insight objects type) only retrieves first results

[Rafael Tejero Palma]

In a cloud premium instance and using insight custom field (type: insight objects) we only get the first objects in the field. Any search we do for other objects do not appear and we get the error "The value is invalid".

This happens when we try to register an issue from the agent portal. In the user portal we do not have this problem.

I found an earlier question, but it has no answer. 

I would appreciate any reference that could help solve this case.

Many thanks.

Rafa.