At least someone saw your post.. my 2 went straight down into nothingness
leaving the video again as additional proof towards the bungies:
https://www.youtube.com/watch?v=WwLQr9VEYO8
sidenote: seems to be failing for any kind of MG (sunset, nonsunset legendary, exotic)
Hello!
After doing a little research myself. It worked with 1 & 2 Machine Gun Reserves going from 28 to 32 with 1 Reserve Mod, but when you attach 2 Mods it lowers it back to 28. Definitely a small bug that Bungie needs to look at. Good find!
When doing raid, definitely stick with 1 Mod till its patched!
Cheers,
Scrub