8.21 multi query field missing

Did the 8.21 multi-query fields feature get reverted?

I don’t see it anymore in SG, it was there last week. Am I using it wrong?
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Using 8.21.0.6928

Bumping this. Same with our SG. Wewere briefly rolled back to 8.20 and then reverted to 8.21 again, but a week later the multi query field still isn’t working?

I was told it was temporarily disabled for an issue. But should be back soon. Fingers crossed!

Just went down the same path as the posters above. Sounds like we had the exact situation as Mark_Webb_OOU (rolled back to 8.20 then upgraded again). Any idea when this feature will be back?