Unable to reroll ward skin shards?

I've been unable to reroll ward skin shards and was wondering if it's disabled or something? i get the error message "crafting failed" and then telling me to try and reload the loot page. But i haven't been able to reroll them since yesterday. The ward skins i'm trying to reroll: Mimi ward hanwha life esports ward 2018 honor 3 ward(not sure how i got this from a chest tho)

We're testing a new feature that gives the option to view discussion comments in chronological order. Some testers have pointed out situations in which they feel a linear view could be helpful, so we'd like see how you guys make use of it.

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