Does not find the recipient

If I enter 2 characters, the loading icon rotates, but i get no result.
Do not know, if it is caused by my local install with wampp?!

No, my local install is not the reason, just tested online; does not work.
Zikula 1.5.2
Php 5.6

Strange, new try and it works.

[Kaik]

Well, I have tested this many times and it is hard to say what might be the reason for this behavior. It is an ajax call so things might happen. We need to test this as much as possible and optimise it.

[Guite]

Does InterCom use the user auto completion form type offered by the core or a custom implementation?

[Kaik]

I think it's custom because it is made to select users and groups not only users.