Collection chest in Coastal Mine is broken

[Harpener]

I opened the collection chest in the Coast Mine and not only I did not get the item, the collection chest is still marked as missing. There goes 100% of the game...

[rster2002]

I'm having a similar issue with a butterfly chest. When I try to fast travel afterwards my game crashes. Does them same happen to you?

[Killjoy]

I think you have the item it just didn't pop up. This happened to me but I have 100% all items.

[Harpener]

I haven't had any crashes and I kept an autosave to not have it opened until it is fixed. I have heard about butterfly chests bugged if follow different butterfly without collecting the chest from the first ones. And I heard about collection chests bugged if you have full inventory. But neither of these is my case. This is the one last chest and one last collection item missing in the overview for me. And the only thing I need to get the trophy. I'm just watching out for patches now.

[TheMoodyD]

Hey I’m having the same issue with my last collection chest, opening it yields no conjugation and I’m 1 away from completing the collection. I also still see the chest icon on the minimap even though it’s opened, implying that the game doesn’t register me having collected it.

[Harpener]

I tested the latest patch and it did not fix anything, the chest still opens and does not yield anything. The map, the mine still shows one missing chest and the collection still shows one missing conjugation...

[Raelic]

Originally posted by Harpener:

I tested the latest patch and it did not fix anything, the chest still opens and does not yield anything. The map, the mine still shows one missing chest and the collection still shows one missing conjugation...

Show me a screen shot of said chest you're trying to collect with the icon showing on the map still.

[Harpener]

Originally posted by Raelic:

Originally posted by Harpener:

I tested the latest patch and it did not fix anything, the chest still opens and does not yield anything. The map, the mine still shows one missing chest and the collection still shows one missing conjugation...

Show me a screen shot of said chest you're trying to collect with the icon showing on the map still.

https://imgur.com/a/bzpLK2T

[Raelic]

Thanks. No idea. The only suggestion I'd have is to check all the butterfly locations again, but OP said they did and the chest is still showing on mini map so, probably a bug yea. I'd just pop the achieve with SAM personally.

Did you mod the game at all?

[rster2002]

If you're missing an item (or possibly multiple items) because of a bug where you didn't get an item from a butterfly chest: try checking all (even already opened) chests in your vivariums. One of mine closed and was able to get the last collectable that I needed for 100%

[Harpener]

I did not mod the game in any way and I never had a problem with butterfly chests. I also collected all chests in Vivarium. I can try going through them again, but I think they aren't shown anywhere, so it is hard to tell if I am missing any.

[Harpener]

I should also emphasize that I never continue playing after opening the empty chest, I always load the last save.

[Harpener]

OMG I cannot believe it, I actually found a chest inside a spider cave in nightly Vivarium. And I also noticed that map summary says I have 149/150 field guide pages, but the collections say I have all of them. Still, I got the last achievement, so thanks for all advices.