As requested in https://bugs.telegram.org/c/4360/6 this is a ticket for Telegram Desktop (Windows). Webp images behave like stickers, not like other images. They do not appear in the image gallery. They cannot be sent as a "bulk" (multiple selected webp images show as separate messages, unlike multiple simultaneous jpg-s).
The upper and lower image in the screenshot are both .webp images. The upper image behaves 100% like a sticker (no interaction possible), the lower CAN be clicked/fullscreened, but is not part of the image gallery also.
Here are the images that I used in the screenshot. Yes, random internet magic.
Tobias Maximilian
Sorry, but upload is completely broken for me. Also as zip. I am on desktop now.
Admin Dog
In this case, please contact our support service to better investigate your case, going in Telegram, Settings — Ask a question. You can ask to talk with a volunteer. Please send the following comment link in the support chat, to better handle your request: https://bugs.telegram.org/c/8514/6
There might be more neutral pictures for you to test, but this is what I find in the depths of my phone :D
The Frostitute replaces the pickle image, for the pickle image is no longer online.
Admin Dog
Well, I'm not able to reproduce the issue from those web links, attached you can find the two image I've got from those links you mentioned.
Are you sure to reproduce the issue from the files you can save from those two images I've attached here?
Tobias Maximilian
Those do not work. They are png's. Not sure how you got them to be pngs by accident. File upload also does not work in Microsoft Edge. Maybe it is restricted to certain file types, zip not included?
Ok, thanks for samples. We have the same on last Android app, and dev Team planned some check on .webp files, to avoid false "positive" case, that might push the app to "think" to handle stickers. The issue will be passed to the Telegram Desktop dev Team. Thanks again for the info.
Tobias Maximilian
Thanks for helping!
Alex
This is still an issue. Reddit is using webp more and more, so when sharing images from Reddit, they occasionally come up as a "sticker" like this.
Status changed to Closed
Admin Dog
This behaviour is intended. Some changes have been made in past releases, but there are handling limits to avoid this.
Log in here to report bugs or suggest features. Please enter your phone number in the international format and we will send a confirmation message to your account via Telegram.
https://9gag.com/gag/aV7rXQM
https://9gag.com/gag/agBbmz1
There might be more neutral pictures for you to test, but this is what I find in the depths of my phone :D
The Frostitute replaces the pickle image, for the pickle image is no longer online.
Are you sure to reproduce the issue from the files you can save from those two images I've attached here?
File upload also does not work in Microsoft Edge. Maybe it is restricted to certain file types, zip not included?
I created a personal download link for you (OneDrive), those are the webp images:
https://1drv.ms/u/s!Aqx0Dux797TKkEWPGBOCtxPoD3fc?e=Q42CbB