imgur.com returning '404' or or 'Unsupported URL'

[belly42]

Attempts to grab a post from imgur.com are now returning 404 or 'unsupported url' on imgur.com.
On the '404's, the 'GET' request appears to be truncated, and there's no obvious difference between those urls and the ones that trigger an 'unsupported url' error.
There's identical results between Linux and Windows

I've made no changes to my config file recently, either, and I've no site-specific config for imgur.com:

user@host:~$ ls -l .gall*
-rw-rw-r-- 1 user user 7066 Apr  7 02:03 .gallery-dl.conf

        "imgur":
        {
            "mp4": true
        },

Examples of errors:

user@host:/mnt/dl/q999$ gallery-dl --verbose https://imgur.com/gallery/making-scarlett-johansson-think-2YxRdEi
[gallery-dl][debug] Version 1.26.9
[gallery-dl][debug] Python 3.10.12 - Linux-5.15.0-105-generic-x86_64-with-glibc2.35
[gallery-dl][debug] requests 2.25.1 - urllib3 1.26.5
[gallery-dl][debug] Configuration Files ['${HOME}/.gallery-dl.conf']
[gallery-dl][debug] Starting DownloadJob for 'https://imgur.com/gallery/making-scarlett-johansson-think-2YxRdEi'
[imgur][debug] Using ImgurGalleryExtractor for 'https://imgur.com/gallery/making-scarlett-johansson-think-2YxRdEi'
[urllib3.connectionpool][debug] Starting new HTTPS connection (1): api.imgur.com:443
[urllib3.connectionpool][debug] https://api.imgur.com:443 "GET /post/v1/posts/makin HTTP/1.1" 404 140
[imgur][error] HttpError: '404 Not Found' for 'https://api.imgur.com/post/v1/posts/makin'

gallery-dl --verbose https://imgur.com/gallery/making-scarlett-johansson-think-2YxRdEi
[gallery-dl][debug] Version 1.26.9 - Executable
[gallery-dl][debug] Python 3.8.10 - Windows-10-10.0.19041
[gallery-dl][debug] requests 2.31.0 - urllib3 2.1.0
[gallery-dl][debug] Configuration Files ['C:\\bin\\gallery-dl.conf']
[gallery-dl][debug] Starting DownloadJob for 'https://imgur.com/gallery/making-scarlett-johansson-think-2YxRdEi'
[imgur][debug] Using ImgurGalleryExtractor for 'https://imgur.com/gallery/making-scarlett-johansson-think-2YxRdEi'
[urllib3.connectionpool][debug] Starting new HTTPS connection (1): api.imgur.com:443
[urllib3.connectionpool][debug] https://api.imgur.com:443 "GET /post/v1/posts/makin HTTP/1.1" 404 140
[imgur][error] HttpError: '404 Not Found' for 'https://api.imgur.com/post/v1/posts/makin'

user@host:/mnt/dl/q999$ gallery-dl --verbose https://imgur.com/gallery/something-rhm-zRFAp4i
[gallery-dl][debug] Version 1.26.9
[gallery-dl][debug] Python 3.10.12 - Linux-5.15.0-105-generic-x86_64-with-glibc2.35
[gallery-dl][debug] requests 2.25.1 - urllib3 1.26.5
[gallery-dl][debug] Configuration Files ['${HOME}/.gallery-dl.conf']
[gallery-dl][debug] Starting DownloadJob for 'https://imgur.com/gallery/something-rhm-zRFAp4i'
[imgur][debug] Using ImgurGalleryExtractor for 'https://imgur.com/gallery/something-rhm-zRFAp4i'
[urllib3.connectionpool][debug] Starting new HTTPS connection (1): api.imgur.com:443
[urllib3.connectionpool][debug] https://api.imgur.com:443 "GET /post/v1/posts/somethi HTTP/1.1" 404 139
[imgur][error] HttpError: '404 Not Found' for 'https://api.imgur.com/post/v1/posts/somethi'

user@host:/mnt/dl/q999$ gallery-dl --verbose "https://imgur.com/gallery/something-rhm-zRFAp4i"
[gallery-dl][debug] Version 1.26.9
[gallery-dl][debug] Python 3.10.12 - Linux-5.15.0-105-generic-x86_64-with-glibc2.35
[gallery-dl][debug] requests 2.25.1 - urllib3 1.26.5
[gallery-dl][debug] Configuration Files ['${HOME}/.gallery-dl.conf']
[gallery-dl][debug] Starting DownloadJob for 'https://imgur.com/gallery/something-rhm-zRFAp4i'
[imgur][debug] Using ImgurGalleryExtractor for 'https://imgur.com/gallery/something-rhm-zRFAp4i'
[urllib3.connectionpool][debug] Starting new HTTPS connection (1): api.imgur.com:443
[urllib3.connectionpool][debug] https://api.imgur.com:443 "GET /post/v1/posts/somethi HTTP/1.1" 404 140
[imgur][error] HttpError: '404 Not Found' for 'https://api.imgur.com/post/v1/posts/somethi'

user@host:/mnt/dl/q999$ gallery-dl --verbose https://imgur.com/gallery/okay-maybe-shes-little-too-good-being-jinx-cosplay-by-maikanayuri-R5vrS8q
[gallery-dl][debug] Version 1.26.9
[gallery-dl][debug] Python 3.10.12 - Linux-5.15.0-105-generic-x86_64-with-glibc2.35
[gallery-dl][debug] requests 2.25.1 - urllib3 1.26.5
[gallery-dl][debug] Configuration Files ['${HOME}/.gallery-dl.conf']
[gallery-dl][debug] Starting DownloadJob for 'https://imgur.com/gallery/okay-maybe-shes-little-too-good-being-jinx-cosplay-by-maikanayuri-R5vrS8q'
[gallery-dl][error] Unsupported URL 'https://imgur.com/gallery/okay-maybe-shes-little-too-good-being-jinx-cosplay-by-maikanayuri-R5vrS8q'

user@host:/mnt/dl/q999$ gallery-dl --verbose "https://imgur.com/gallery/okay-maybe-shes-little-too-good-being-jinx-cosplay-by-maikanayuri-R5vrS8q"
[gallery-dl][debug] Version 1.26.9
[gallery-dl][debug] Python 3.10.12 - Linux-5.15.0-105-generic-x86_64-with-glibc2.35
[gallery-dl][debug] requests 2.25.1 - urllib3 1.26.5
[gallery-dl][debug] Configuration Files ['${HOME}/.gallery-dl.conf']
[gallery-dl][debug] Starting DownloadJob for 'https://imgur.com/gallery/okay-maybe-shes-little-too-good-being-jinx-cosplay-by-maikanayuri-R5vrS8q'
[gallery-dl][error] Unsupported URL 'https://imgur.com/gallery/okay-maybe-shes-little-too-good-being-jinx-cosplay-by-maikanayuri-R5vrS8q'