Missing VNIR BOA reflectance data in L2A output in case of pixels below sea level

For some pixels, the L2A result of ENMAP01-____L1B-DT0000026449_20230711T111342Z_002_V010302_20230712T062729Z contains only zero-values for the VNIR:

This was processed with SICOR AC in land mode, with segmentation and first guess retrievals enabled.