NVDA 2017.3 does not show capital characters when using the 8 dot contracted braille table.
This was the case until 2017.3 where the input table was added.

Here is how to reproduce

1. Select the Danish 8 dot contracted table under options, braille options.
2. Open Notepad and type:
   Hello World
   Now make a newline and type:
   NVDA
   Remember to type all characters as capitals when typing NVDA.
3. On the braille display it shows:
   hello world!
   n v d a

So:
When a word contains of multiple capital letters the dot 7 is not used, instead there is inserted a space, and when words start with a capital letter this is not shown.

4. Now try retype the examples above but switch to the Danish uncontracted braille table.
   You will now find that capital characters works again just fine.

Tested on Windows 7 with a Braille Sense U2 from HIMS.