Carlos, this should work and always has in Project, and I don’t know of any option that would prevent it from being available. You might check your calendar for anything strange. Is it happening on only one project or all projects? Can you send the project to another user and see if they have the same problem? Just trying to give you some thoughts to start researching. Hopefully someone else has some ideas.
I found the problem. My MS Project version is in Portuguese, so is not ed but dp. I did not read the warning with the proper and carefully attention. My apologies. Another lesson: read carefully all MS Project warnings.
This afternoon I will post another issue regarding tracking progress tasks with work and costs assigned. I will appreciate your comments, if possible.