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I could swear I used to do this but I haven't been using Affinity for more than a few months. I think I used to do this in Photoshop also. You mean I can't set a 32x32 grid and make the selection snap to it? Here's another bug with grids which just happened.

Still no response? Can anyone confirm if this is a bug or is my copy broken?

I think the 1.8.3 update broke snap to grid for me because it was working last time I used it. Maybe something else changed but I can't figure it out.

I'm also having problems merely selecting a block of 8x8 pixels because of the sub pixel accuracy (no, holding down shift doesn't work as expected). I've never had a graphics program be so finicky and it's honestly hard to believe a product as mature as Affinity doesn't behave normally. I should have tested more before I purchased but I'll make a feature request anyways.

I didn't have problems with this using Photoshop so I think Affinity is just missing some options and in my opinion should default to PS behavior since so many of us are migrating from Adobe. Is this a feature request I can make? I'd like to use Affinity to replace Photoshop but I think I'll have to go back because pixel editing doesn't appear to well supported.

Thanks Gary, changing the filtering does work. This is a hack though which should be handled differently. You can see in the screen that now the sampling is correct but the selection still shows being at 50% of the pixel because it's still using sub-pixel locations. There probably needs an option to which doesn't allow any locations that are not integers. I'll see what the developers have to say about this.

It's a problem of the filtering method used and sub-pixel sampling which determines opacity. Here's another screenshot of the same issue. Affinity will not let me select pixels on the actual grid lines which is extremely annoying and hen it uses sub-pixel sampling when dragging around the layer so the opacity on the edges gets altered. There must be a way to turn this off so we get 1 to 1 mapping and nearest neighbor filtering.

I'm having an extremely difficult time doing pixel editing which I believe is due to sub-pixels smoothing, that is when a pixel is dragged off alignment the opacity changes to reflect the offset. The screenshot below is resizing a block of pixels but I'm having this problem with pasting and many other areas. Can I disable this somehow? I've been tried to enable snapping but it doesn't seem to make any difference. I basically just want the same behavior I would get in Photoshop.