Andreas, On Wed, Dec 8, 2021 at 1:32 PM Andreas Tille <andreas@an3as.eu> wrote: [...] > File "/build/pydicom-2.2.2/.pybuild/cpython3_3.9_pydicom/build/pydicom/encoders/gdcm.py", line 60 in encode_pixel_data [...] Could you re-run the above test within gdb ? I would need a `bt full` to have some idea to get started. Eg: $ gdb python3 ....path/to/pytdicom/test You may want to have libgdcm3.0-dbgsym first. Thanks