Adventure tab is unavailable in the Advancements menu. Unsure if there is a trigger for when it appears, but base on a review of the snapshot by Xisumavoid, it doesn't appear so. This occurred in a game created in snapshot 17w14a.
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tryashtar
Try killing a mob.
SunCat
Thank you for your report!
However, this issue has been closed as a Duplicate of MC-115424.
It has been linked to this report. If you have additional information, please add it to that report.
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