I was asked whether you could accidentally burn an already upgrading artifact when you want to upgrade another artifact.

So I tried it out.

And yes, you need to be careful as, unfortunately, you can :(

Step 1: I have 9 poors: https://i.imgur.com/4NWyeo3.png
Step 2: I upgrade 1 of them burning 4 others: https://i.imgur.com/dbNIWsE.png
Step 3: The upgrading artifact from step 2 can be selected when upgrading another one: https://i.imgur.com/1ALhmoc.png
Step 4: And there is not even a warning that this might not be intended but just burned: https://i.imgur.com/Oj4CO3m.png

Yeah, we tested that as well a couple years ago, but i g we should have documented it better 😅

Thanks for your sacrifice Dotto!

@Fizzer maybe fix this?

I filed a bug ticket for it. At least a warning would be nice to not accidentally sacrifice an important artifact.

It might not be relevant as long it is a poor. But if you sacrifice an almost complete insane AcacheB arti, that would be pain.

A more ugly question
Is it possible to distinguish 2 artifacts of the same type & rarity?
Say, common SAC, & common SAC (upgrading)

https://i.imgur.com/1ALhmoc.png shows it