I've started to notice the more I'm doing higher level missions that the reward satchels don't stack like the Lesser Satchels do. I can complete two Easy missions with exceptional success, check my inventory, and find a stack of four Lesser Satchels, but if I complete two Medium or Hard missions (we'll say also with exceptional success) I wind up with two stacks of two Standard/Greater Satchels in my inventory.

It's because of how it's generated. This isn't really a bug, just more of an inconvenience until I come up with a better way.

Items are stacked based on a few of of their qualities, name being one of them. When a satchel's created, it starts off at level 0 and then adjusts the level to the appropriate level. So the Level 0 ____ Satchel won't stack with the Level 25 ____ Satchel.

So until I can come up with a new way of handing out the rewards, it'll just be this way

I'm pretty sure all of the ones I've gotten have been the same level.

Yea. But when the item is created to the database it starts off at Level 0. And then it adjusts the level to whatever the mission level is. But because it's added as Level 0, it won't stack with the ones already created because they've already been adjusted.

Is that why Lesser satchels will stack up to however many easy missions we had running concurrently (and collect for all at once), but Standard and Greater won't even though they're registered as the same type of item? I'm sorry, I'm trying to understand cause I would think once it's adjusted it would just stack right onto a like item (like the Lessers do).

The green one's stack because it's still level 0 even after it's adjusted so it's the same name/level. The others don't because they get increased to a higher level.