orca not starting - TIMEOUT: something has hung. Aborting.

On Debian buster, running orca (or orca -r) results in:

TIMEOUT: something has hung. Aborting.

To debug was following https://wiki.gnome.org/Projects/Orca/Debugging - Using $HOME/.local/share/orca/orca-customizations.py

import orca.debug
import time
orca.debug.debugLevel = orca.debug.LEVEL_ALL
orca.debug.eventDebugLevel = orca.debug.LEVEL_OFF
orca.debug.debugFile = open(time.strftime('debug-%Y-%m-%d-%H:%M:%S.out'), 'w')

Are instructions on https://wiki.gnome.org/Projects/Orca/Debugging up to date?

Debug log contains nothing helpful.

INFO: Cleaning up these PIDs: [] 11:47:07 - SETTINGS MANAGER: Activating

Running

espeak-ng --stdout "this is a test" | aplay

is functional. Can hear "this is a test".

SPI also looks functional as per https://www.freedesktop.org/wiki/Accessibility/AT-SPI2/ with these test commands

$ xprop -root | grep SPI

$ dbus-monitor --address [...]

Something related I found: https://gitlab.tails.boum.org/tails/tails/-/issues/8075 But I don't think that applies anymore? I guess orca no longer requires localhost port 4101 since it's all unix domain socket file based nowadays?

Anything else I can do to debug this?

Should I provide the strace (~ 2.2 MB size) file?