[orca-list] Unable to start Orca: how to debug it?

[Alex ARNAUD <aarnaud hypra fr>]

    Hello all,
    
    Environment:
    - Debian 10
    - Orca 3.36
    - Mate environment
    - GDM login manager 3.30.2-3
    
    I'm trying to help solving an issue on a visual-impaired computer
    but I get the following message when starting Orca:
> $ orca --replace
>       12:41:29.311971 - TIMEOUT: something has hung. Aborting.
>       Processus arrêté
>     
    
    The check-a11y tool from Samuel gives me this:
    https://pastebin.com/mmypvjVD
    
    The Orca debug log gives me only:
> INFO: Cleaning up these PIDs: []
>       14:21:56.061631 - SETTINGS MANAGER: Activating
>       14:21:56.061973 - SETTINGS MANAGER: Attempt to load
>       orca-customizations from
>       /home/alexarnaud/.local/share/orca/orca-customizations.py
>       succeeded.
>       14:21:56.062529 - SETTINGS MANAGER: Activated
>     
    (and Orca stops)
    
    I don't see any upgrade which could lead to such issue because Orca
    works correctly before. 
    
    The user has "snapd" installed but I've it installed on my computer
    too without problem. I removed all installed snap applications.
    
    To be honest, I don't really know how to go forward. Does anyone has
    an idea?
    
    Thanks in advance.