EDF files only contain the first patch for "mosaic" maps
It seems that if the map is more than 1x1, the edf file only contains the first patch.
For your tests, please find the .h5 and .edf files of Pa_thin_NA_C_Pa_thin_NA_PaWeLiLW_ul04_3x1_400x360_400x360_60_0023_c_output
here:
X:\hg159\id13\XXPROCESS_jupyter\Pa_thin_NA
the entire map is 1200 pixels in horizontal and we have only 400 in XRDUA files.