Strange button behaviour after page editing

[vjandrea]

I added a new fixture to a page that already had 6 machines of the same type.
When i edit an existing button i see the old fixtures grouped in one tab, and the new fixture in another tab separately, but the library file is the same. The same happens if i try to create a new button.
If i try to drag/drop the settings from an existing machine to the new one, nothing happens and no parameters are transferred.
If i add EasyTime params to the new machine, i can't compress everything with the existing machines, and i can't copy/paste an existing timeline.
I see the same strange behaviour with both the latest official and beta versions.
Any clue?
thanks

[simonB]

Are you sure it's exactly the same profile and in the same location? If yes, e-mail me your showfile and profile and I'll check it out