Deviantart: No longer dowloads full-size/original image for non-downloadable art

[spectrefps]

This is mostly outdated now (basically everything in italics), see 'UPDATE 3' within this post at the bottom for the most recent status. It looks like DeviantArt has blocked gallery-dl form downloading full-size/original images for now.

For this artwork on DA (https://www.deviantart.com/riikozor/art/Commission-Nazek-340156337), it tries the URL (increasing delay after each attempt), and then produces the '403 forbidden' warning and resorts to a fallback-URL which results in a smaller version of the image.

I remember getting the '403 and fallback-URL' issue on only a few URLs before the recent update, and since then, it's been working like a charm on all of them until this one. Maybe this is one of the last 'problem URLs' for Deviantart? (as long as they don't go and change up everything on their end again) XD

UPDATE: Within the same gallery, this artwork (https://www.deviantart.com/riikozor/art/Draenei-466352463) also produces the issue. However, other artworks within the same gallery download fine.

This one also: https://www.deviantart.com/kimisz/art/Commission-Draenei-Death-Knight-327645028

It may just be coincidence, but this is seeming to occur on older artworks (2012 or earlier). Maybe they are using a different (perhaps 'legacy') image URL format or syntax for older images like these (before they changed stuff on their backed for newer images/artworks)?

UPDATE 2: As Twi-Hard posted, this issue appears to occur on most DA pages now (that lack the 'Download' button). DA changed something on their end again? I will list some of the links of artworks this issue now occurs on.

https://www.deviantart.com/pocketstash/art/C-Draenei-881116926 https://www.deviantart.com/kirshivanilla/art/Ralakia-Bust-up-Portrait-944608016 https://www.deviantart.com/pufikn/art/Draenei-commission-847056249 https://www.deviantart.com/pufikn/art/Commission-897446832 https://www.deviantart.com/pufikn/art/draenei-827271193

UPDATE 3 10/20/2023

It looks like you can no longer download any full-size images for non-downloadable art (those that lack the "Download" arrow/button) anymore. After trying all of the suggestions in this topic, it only returns the preview-size art (a fraction of the original/full dimensions).