I've installed the Versión 2.50+ Build 160213 recently and conditions is not working at all on fresh install. Anybody with the same problem?

I would try a newer version of LS 2.5.

Take a look at the news section: www.limesurvey.org/forum/news
A lot of releases since your version 160213.
Current version is LimeSurvey 2.50+ build 160317

If that doesn't help please explain how conditions are not working. E.g. you can add conditions but they are not applied during the interview. Or you cannot add conditions.

I thought Versión 2.50+ Build 160213 was a stable realease. I've updated to 160317 and It looks to work. Thanks.