How to Write a Good Bug Report
We read every single thread that is posted on this forum. However, we will not always respond to every thread. If you do not get a blue response, please DO NOT bump posts. We will ignore and possibly delete any post that simply says “Bump” or demands a response from a Blizzard poster.
Including this one, there have now been 45 threads about Calamity not generating Momentum stacks reliably…
https://us.forums.blizzard.com/en/d3/search?q=calamity%20%23bug-report%20order%3Alatest
Blizzard haven’t acknowledged any of the previous threads that I’m aware of, so I wouldn’t hold your breath that they’ll do so for this one either.