Sorry, by “locally uploaded” what exactly do you mean? I tried to upload one here (to /c/sissychastity ) if that’s what you meant and got the following error:

{"data":{"files":null,"msg":"Error performing PUT https://eb21b514652257169b552d5ece7ddfd2.r2.cloudflarestorage.com/lemmynsfw/01/98/28/af/16/04/76/42/91/07/3f775b0b643a.jpeg in 47.241919ms - Server returned non-2xx status code: 403 Forbidden: <?xml version=\"1.0\" encoding=\"UTF-8\"?><Error><Code>NotEntitled</Code><Message>Please enable R2 through the Cloudflare Dashboard.</Message></Error>"},"state":"success"}