I have performed some aditional tests, the problem is related to GeoTIFF-BigTIFF format. The standard GeoTIFF images are opened without issues by SNAP, however the GeoTIFF-BigTIFF images are not.
I have produced using the same data, GeoTIFF and GeoTIFF-BigTIFF images. There are no problems with the first ones, conversely the second ones are not opened by SNAP.
Please find enclosed the output error messages (gpt_error.txt), from attempts of gpt processing that try to read GeoTIFF-BigTIFF images.
Note that is a reading issue. The tests also have been performed using GeoTIFF-BigTIFF images writed using gpt Write operator (SNAP 8.0 version). These GeoTIFF-BigTIFF images were opened correctly using other tools and the previous SNAP version.
gpt_error.txt (4.1 KB)