Steps to reproduce:

• Open a text-file in Notepad++. It has to be long enough to not fit on screen in its entirety.
• Arrow down until the text begins scrolling.
• Perform script_braille_nextLine or repeated script_braille_scrollForward.
  • Expected: the next line of text is shown on the braille display.
  • Actual: the text is scrolled but the the braille display isn't updated.

To fix this, arrow up/down once. To work around the issue use the arrow keys to move through text, this behaves as expected. This does not happen in Notepad or WordPad. Tried with a portable copy of Notepad++ to make sure it isn't caused by a local configuration change. I haven't looked much further but will do that if this doesn't fall into the cantfix category.