Wrong bundle name

Hi,

I found a strange error. For some users (it seems to be random) there are field collections wrongly associated with a field.

You can see what I am saying in the picture I'm attatching. The field 'field_fcis_experiencia' uses the filed collection widget and I have a field collection with this name, everything OK. The same for field_fcis_altre_interes. But in this example, a field collection that should be associated to field_fcis_experiencia is associated to field_fcis_altre_interes.

Any ideas? Thanks!!