Stack unwinding and symbols missing while debug info files (.pdb and .pyd) are well provided


I’m trying to use Sentry on-premise (version Sentry 20.10.0.dev06342916 ) to collect issues of C++ code (more precisely from a .pyd).

I succeed in collecting issues, and uploading debug informations files but the stack is not readable. Indeed Sentry show me that the image is not loaded for my meta_nodal_py.pyd.
But if I click on the glass I well see the file with good name, debug id and unwind et symtab tags :

May I miss something or missunderstand or falling in a bug ?

Thanks you for your help.