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NVDA 2018.3 beta 4 hangs during braille translation #8729

@jasonjgw

Description

@jasonjgw

Steps to reproduce:

Actual behavior:

NVDA hangs and must be restarted. I haven't found another means of recovering. The following appears in the logs:

DEBUGWARNING - watchdog._watcher (16:17:58.177):
Trying to recover from freeze, core stack:
  File "nvda.pyw", line 214, in <module>
  File "core.pyo", line 508, in main
  File "wx\core.pyo", line 2134, in MainLoop
  File "gui\__init__.pyo", line 963, in Notify
  File "core.pyo", line 481, in run
  File "braille.pyo", line 2131, in pumpAll
  File "braille.pyo", line 1873, in handlePendingCaretUpdate
  File "braille.pyo", line 1879, in _doCursorMove
  File "braille.pyo", line 1008, in update
  File "braille.pyo", line 427, in update
  File "louis\__init__.pyo", line 157, in translate

WARNING - watchdog._watcher (16:18:13.220):
Core frozen in stack:
  File "nvda.pyw", line 214, in <module>
  File "core.pyo", line 508, in main
  File "wx\core.pyo", line 2134, in MainLoop
  File "gui\__init__.pyo", line 963, in Notify
  File "core.pyo", line 481, in run
  File "braille.pyo", line 2131, in pumpAll
  File "braille.pyo", line 1873, in handlePendingCaretUpdate
  File "braille.pyo", line 1879, in _doCursorMove
  File "braille.pyo", line 1008, in update
  File "braille.pyo", line 427, in update
  File "louis\__init__.pyo", line 157, in translate

DEBUGWARNING - RPC process 11964 (nvda_slave.exe) (16:18:20.325):
Python warning:
C:\Program Files (x86)\NVDA\library.zip\configobj.py:28: DeprecationWarning: The compiler package is deprecated and removed in Python 3.x.

Expected behavior:

Reading of the text, and simultaneous braille translation, without a hang.

System configuration:

NVDA installed under Windows 10 1803 build 17134.254, x64. Contracted braille enabled (US English Grade II)

NVDA Installed/portable/running from source:

installed.

NVDA version:

2018.3 beta 4, also seen under beta 3, which was the first beta of 2018.3 that I tried.

Windows version:

Windows 10 1803 version 17134.254

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

Chrome 69 - also experienced under chrome 68.

Other information about your system:

Other questions:

Does the issue still occur after restarting your PC?

yes

Have you tried any other versions of NVDA?

I don't think I encountered this issue under 2018.2.1.

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