Taylor Swift won Album of the Year (again) at the Grammys, but weirdly ignored the musical icon presenting in Celine Dion — even though … she paid her respects backstage, it seems.

Rare misstep for Tay Tay, who’s usually on point … but on Sunday night, she kinda screwed up — at least in Twitter’s eyes, anyway — when she paid little to no attention to CD who announced her as the winner for AOTY … which was a big deal for a lot of reasons.

It was the final award for the night — and the largest prize at the Grammys, period — which is why it was such a remarkable moment to see Celine come out to present it in person.

Of course, she’s very publicly battling Stiff-Person Syndrome — and has stepped away from the spotlight of late — so for her to do this was notable and moving, especially since she appeared to look relatively healthy here … something the audience met with a standing O.

Fast-forward to Taylor being named the winner, when she ran onstage with her collaborators — plus Lana Del Rey — and looked so overcome with emotion that she totally downplayed Celine’s presence … simply taking the statuette from her without so much as a nod.

Indeed, it came off as quite rude — you could tell Celine found it odd as well — and the Internet unloaded on Taylor for what they perceived as a major lack of respect/reverence.

It would appear Taylor and/or team caught wind of this backlash quickly — ’cause not too long after … a photo of the two posing together (and looking cozy) backstage surfaced, which a ton of outlets then posted without much description or captions. Coincidence much?

Some are suggesting her PR machine kicked into high gear — and perhaps it did. In any case, it sounds like T-Swift made things right with the legend … all’s well that ends well.