Did you find any hints in these topics?
- Sen2cor DEM
- Sen2cor DEM parameters
- Sen2cor DEM usage
- Snap - Sen2Cor - Cirrus and DEM
- Error using sen2cor v 2.3.0 with DEM
- Topographic Correction with Sen2Cor-02.05.05-win64
- Sen2Cor Standalone Change Folder where cfg/ log/ and s2c looks for DEM
- Where to report Sen2Cor bugs - DEM not used if part can not be found
- Terrain correction, DEM