.psd has lost ability to snap to guides

[Angelique & Friends]

I have Photoshop CC 20.0.3. I'm working on an important graphic. Everything was fine until I increased the size of the canvas. Now nothing will snap to the guides, whether the guides are old or new. In fact, I removed all of the old guides and created new ones. Still no snap. I've also closed and reopened Photoshop and turned guides, extras, and snapping on and off to no avail.

As a test, I created a new .psd file. Guide-snapping works fine there. It also works fine on older images. It's just this current one that isn't working. I don't want to have to rebuild the image from scratch, but it looks like I might have to do this in order for the guides to work.

[Chuck Uebele]

I can't seem to replicate this. Rather than recreating the file, can you either try duplicating it, or copying the layers to a new file?

[Angelique & Friends]

Okay, we're getting somewhere. I duplicated the file, and the fill layer that I want to snap to the guides still will not snap, but a new text layer DOES snap. Not only that, my text layers in the original file will snap, even though the fill layers will not.

(Not only won't the fill layers snap, but I don't even get a visual highlight of the guide line when I move the fill layers. But I get the visual highlight when I move text layers.)

[Chuck Uebele]

How did you create the fill layer? Just a normal layer filled with the foreground or background color?

[Angelique & Friends]

I used the rectangular marquee tool to draw a rectangle, then clicked layer/new fill layer/solid color.

By the way, I've also tried turning those layers into smart objects. It did not make them snap.

[Chuck Uebele]

Tried that, and it's also working for me.

[JJMack]

You are missing an uodate current CC 2019 is version 20.0.4.  How you snap to set abd whicj option are enabled.