Hi Martim -thanks, I see this... I do not have a good idea yet what might be going on though.
@Martim_Barrento - it looks like it is a matter of the Display panel's setting for 'Surface edges'. If that is checked for the display mode, then we see what you show - normally surface edges would not be on (defaults) for rendered mode but for some reason mine was checked and yours may be as well.
However, in Shaded mode here the selected block inside BlockEdit pops forward of the other object- the others are locked but I don't think they should necessarily be drawn behind - there is still something I don't get...