Most of the replications failed, except some. My theory is that nuclear reaction in hydrogen loaded palladium is initiated by cosmic gamma rays or cosmic muons, thus those laboratories which were open to cosmic rays, such as at top floors or in mountain areas, are able to reproduce results, while shielded labs are unable.

I planned to set up a similar experiment and bombard a hydrogen loaded target with muons, or move the experiment to the top of a Carpathian mountain, but the institute of nuclear research in Kharkiv, Ukraine is under attack, so it's not possible.

The idea of using ErD3 instead of Nickel or Palladium is very good, because it saves weeks of time to load the target with Deuterium.