Can't change image size when exporting in Save to Web

[mjbwale]

Hi, I am creating an instagram carousel in photoshop - i.e. a very long canvas. I created a new blank canvas with the custom dimensions of 1350 for height and 9720 for width (it will equal 9 slides that are 1080). I added multiple images and then split the canvas into 1080 sections. When I go to export Save for web legacy, it shows that the image size is 8192 W and 1138 H. That's odd. When I try to change it to 9720 and 1350, it gives me this error. So I went with it to see what the images would look like but that has reduced the quality of my image slides. I go back in and double check that my canvas size is still what I put it as and sure enough it still is 9720 + 1350. So shouldn't the image size in export match that? If so how can I change it?

[martinowong]

So I made a new file, 10080 w artboard...and it exported fine with the correct resolution, 1080, both if i select all slices or even if i select one slice
in the save for web screen it shows the resizing but the export is correct

so somehow the file I was working with is somehow bugged? weird because it's made from a copy of a template and the export of the template works at full resolution

[Todd_Morgan]

I just did a canvas 30000x4000 and sliced into 9 and resulting files 3333x4000 no prob

[Todd_Morgan]

OK so I see what happens. If you do anything in that Save for web window it will see the resize and do it. But, if you Save for web and don't touch any settings just click save you are good to go