Steps to reproduce:

1. Turn NVDA's UIA in Word option on. Open Word 365 to a blank document.
2. Type: 1. The first
3. Press enter and for list item 2 type "the second".
4. Press UP ARROW.
5. Press LEFT ARROW
6. Press RIGHT ARROW four times.

Actual behavior:

A) At Step 4, NVDA reads "1. The first 2"
B) At Step 5 (left arrow), NVDA reads "T".
C) At step 6, NVDA reads "2", then "2. T", then "2. T", then "h"

Expected behavior:

A) NVDA should read "1. The first" (without reading 2)
B) This step is correct.
C) NVDA should read "linefeed", "2", "T", "h"

System configuration

NVDA installed/portable/running from source:

NVDA version:

NVDA 2019.1.1 installed
nvda_snapshot_alpha-17311,0d29265e

Windows version:

Windows 10 18362.1

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

Office 365 Version:
16.0.11601.20184

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? If so, please report their behaviors.