For the past couple years, Ive noticed a weird bug on Apples Messages app specifically to do with images. Ive been hoping that Apple would get around to fixing it for the longest time, but they havent thus far.Essentially, if you send an AVIF image file on iMessage, it wont render properly. AVIF is an increasingly popular image format, so its a little annoying.However, thats just the tip of the iceberg. Itd be one thing if Apple just didnt support the file format. But, for some bizarre reason, it shows in a small window, with no way of expanding the preview. As a result, you just have a really tiny image on your screen that you cant properly look at.It behaves this way on both iOS and macOS. You can even properly see the AVIF image in the Message send preview, so youd never suspect anything prior to sending an image.Itd be one thing if Apple didnt support AVIF at all, but they do. Apple implemented support for AVIF image files in Safari in iOS 16, over two years ago.For whatever reason, they just havent gotten around to supporting it in iMessage, even though the AVIF files are visible to users. Theres just no way to properly view them.This experience is weird, and I sincerely hope Apple gets around to fixing it soon. AVIFs are supported in Safari and Photos, so theres nothing stopping users from sending them on iMessage. Theyll never render properly, and you end up in a weird situation where you sent an image that isnt viewable. Its annoying.My favorite iPhone accessories on Amazon:Follow Michael:X/Twitter,Bluesky,InstagramAdd 9to5Mac to your Google News feed. FTC: We use income earning auto affiliate links. More.Youre reading 9to5Mac experts who break news about Apple and its surrounding ecosystem, day after day. Be sure to check out our homepage for all the latest news, and follow 9to5Mac on Twitter, Facebook, and LinkedIn to stay in the loop. Dont know where to start? Check out our exclusive stories, reviews, how-tos, and subscribe to our YouTube channel