It appears something has broken on live Dragonflight realms, as Seasonal content has suddenly stopped working! Sometime within the last hour, numerous reports have surfaced of players being unable to upgrade Season 4 items, the Adventure Guide no longer details awakened raids, and more.
No upgrade for you.
The Adventure Guide gives us a hint as to what might be happening, as the Current Season dungeons tab is greyed out and the raid tap doesn't list any of the Dragonflight raids, similar to what can be seen on The War Within Beta.
Note that the Dragonflight tab does not show any Awakened raids, while the Current Season is devoid of content.
For some reason, it appears that Dragonflight thinks Season 4 is already over, which may come as a relief to some… until they remember we still have 70 days left until The War Within either way! In all seriousness, the presumption is that something went wrong with the latest set of hotfixes, which were aimed at Remix and may have been done on a version of the game in which Season 4 content was not enabled.
Whatever the case may be, we expect it to be corrected soon.
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