Smart Guides During Proportional Free Transform

[TripleYoThreat]

Hi, I'm basically trying to resize an image to fit my canvas. When I drag the corner and hold shift to do it proportionally, the smart guide no longer shows to line it up to the canvas. If I do not use shift, it is there, but it is no longer proportional. I was thinking it has to do with the ratio or dimensions of the image, but it should still work. Thanks for any help!





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[IamSam]

Try holding shift + option/alt