[quote]Dear Bungie, since the launch of beyond light, equipping two reserve mods of the same type does not have the desired effect of adding reserves. One mods does work but the second mod basically makes it so it's as if you didn't have any reserve mods on. I hope this gets its attention and fix at some point.[/quote] For what mod? Machine gun extra ammo is bugged when you use 2 they seem to cancel each other out when I use xenophage but not other mods that I've used. Having 2 grenade launcher extra ammo mods works fine.

Diminishing returns for each mod equipped and certain weapons can’t hold over a certain amount so reserves don’t affect them, ward cliff will only ever hold 5 rockets for example.