Text cannot be read in PowerPoint edit fields

[CyrilleB79]

Steps to reproduce:

• Open a PowerPoint presentation
• Focus a text area (or create it), e.g. on the title
• Press F2 to edit it
• Press control+k to insert a link
• In the edit field of the dialog that opens, try to write something and to re-read it with arrows or NVDA+upArrow

Actual behavior:

Text is not read

Expected behavior:

Text should be read

NVDA logs, crash dumps and other attachments:

ERROR - scriptHandler.executeScript (09:59:47.161) - MainThread (30944):
error executing script: <bound method GlobalCommands.script_reportCurrentLine of <globalCommands.GlobalCommands object at 0x06744C90>> with gesture 'NVDA+flèche haut'
Traceback (most recent call last):
  File "scriptHandler.pyc", line 300, in executeScript
  File "globalCommands.pyc", line 211, in script_reportCurrentLine
  File "NVDAObjects\window\edit.pyc", line 1107, in makeTextInfo
  File "NVDAObjects\window\edit.pyc", line 895, in __init__
AttributeError: 'NoneType' object has no attribute 'duplicate'

System configuration

NVDA installed/portable/running from source:

Installed

NVDA version:

2024.4rc1

Windows version:

Windows 10

Name and version of other software in use when reproducing the issue:

PowerPoint Microsoft® PowerPoint® 2016 MSO (Version 2410 Build 16.0.18129.20100) 32 bits

Other information about your system:

N/A

Other questions

Does the issue still occur after restarting your computer?

Yes

Have you tried any other versions of NVDA? If so, please report their behaviors.

• NVDA 2020.4 is OK
• The issue appears in NVDA 2021.1

If NVDA add-ons are disabled, is your problem still occurring?

Yes

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?

Yes