I think I may have screwed up that shatter. I have a piece of hemp string hanging from the door that hooks on the handle, so that the door opens when I release the vacuum. I do this because the metal latch grinds really hard if I open it afterwards, because the door has a thick gasket that pushes outward when there is no vacuum.
It's hard to explain, but anyways, I fucked up and closed the door on the string, which leaked in air and caused the concentrate to sit in a 92 degree oven overnight. I re-vacuumed it when I realized, but now it looks flat and a little darker than normal. I haven't opened up the oven to check it yet. I did turn on the pump which usually causes a little bit of bubbling, but nothing happened. This may have been a massive blunder. Luckily I have plenty of material due to the Amazonian larf jungle from a couple of grows ago. I need to order more butane though.