Unable to load Microsoft OneCore synthesizer

[hanibabe]

I have the latest NVDA version installed to my laptop 2023.3.0.29780), Windows 10 version 22H2 (19045.3570).
I've been trying to change the synthesizer to OneCore. Alas this fails with a message "Cannot load OneCore".

In the log I have an OSError [WinError -529697949] Windows Error 0xe06d7363:

ERROR - synthDriverHandler.setSynth (13:50:37.192) - MainThread (16424):
setSynth failed for oneCore
Traceback (most recent call last):
File "synthDriverHandler.pyc", line 476, in setSynth
File "synthDriverHandler.pyc", line 439, in getSynthInstance
File "synthDrivers\oneCore.pyc", line 238, in init
OSError: [WinError -529697949] Windows Error 0xe06d7363
INFO - synthDriverHandler.setSynth (13:50:37.192) - MainThread (16424):
Falling back to previous synthDriver espeak
INFO - synthDrivers.espeak.SynthDriver.init (13:50:37.202) - MainThread (16424):
Using eSpeak NG version 1.52-dev
INFO - synthDriverHandler.setSynth (13:50:37.263) - MainThread (16424):
Loaded synthDriver espeak
INFO - watchdog.waitForFreezeRecovery (13:51:31.064) - watchdog (17076):
Starting freeze recovery after 0.5002661999999987 seconds.
INFO - watchdog.waitForFreezeRecovery (13:51:31.963) - watchdog (17076):
Recovered from freeze after 1.400620399999994 seconds.
INFO - core.main (13:51:34.243) - MainThread (16424):
Exiting

Does anyone have an idea what could cause the problem or how to fix it?