  Intra unit cell (IUC) magnetic order observed by polarized neutron
diffraction (PND) is one of the hallmarks of the pseudogap state of
high-temperature copper oxide superconductors. This experimental observation,
usually interpreted as a result of loop currents, has been recently challenged
based on lower statistics data. We here address the crucial issue of
polarization inhomogeneities in the neutron beams showing that the original
data had a much better reproducibilty. Within these technical limitations, we
here propose a self-consistent analysis that potentially solves the
controversy. We show that all the reported PND experiments in superconducting
cuprates are actually compatible with the existence of an IUC magnetism.
