Celestial Observer's Armor Set

Since today the Celestial Observer’s Armor Set is gone from my collection and inventory. Even my character using this transmog has changed even though it shows as owned in the shop menu. Does anyone have the same issue?
Thanks

I see you’ve posted in the main thread. For clarity this is a known long-term issue and also has a support article here: https://eu.battle.net/support/en/article/302108

No workarounds other then waiting it out, it will return after awhile.