nRF24L01+ how to send blank data (send 0x00 not working)

To make it easy for people to help you please modify your post and use the code button </> so your code looks like this and is easy to copy to a text editor. See How to use the Forum

Your code is too long for me to study quickly without copying to a text editor.

Also use the AutoFormat tool to indent your code for easier reading.

And I am confused ...
Is the code in Reply #2 the working code?

If it works, why bother with the earlier version?
If you do want to figure out what is wrong with the earlier version then compare them carefully

...R