(solved) Webp not supported. While a majority of other sites supports this format, trying to upload webp image here fails with an error. Exiftool info of example image that failed to upload is listed below.
ExifTool Version Number : 12.40
File Name : insertfilenamehere.webp
Directory : .
File Size : 94 KiB
File Modification Date/Time : 2023:04:29 18:14:26+03:00
File Access Date/Time : 2023:04:29 18:14:26+03:00
File Inode Change Date/Time : 2023:04:29 18:14:26+03:00
File Permissions : -rw-rw-r--
File Type : WEBP
File Type Extension : webp
MIME Type : image/webp
VP8 Version : 0 (bicubic reconstruction, normal loop)
Image Width : 617
Horizontal Scale : 0
Image Height : 617
Vertical Scale : 0
Exif Byte Order : Little-endian (Intel, II)
Subfile Type : Reduced-resolution image
Bits Per Sample : 8 8 8
Compression : JPEG (old-style)
Photometric Interpretation : YCbCr
Samples Per Pixel : 3
Thumbnail Offset : 83682
Thumbnail Length : 12992
Image Size : 617x617
Megapixels : 0.381
Thumbnail Image : (Binary data 12992 bytes, use -b option to extract)