Vk api and wall.post are not showing the attached video or pictures, why?

Question

In contact with

PUBLIC WHERE THE PHOTO IS POSTED: https://new.vk.com/public124055633
PHOTO IS TAKEN FROM THE ALBUM OF THE OWNER OF THE PUBLIC https://new.vk.com/id371694878
please tell me why when adding a record through the wall.post api method, picture or video is not displayed, but the entry is normally added and you can even attach a link, but not a picture. I do this:
I go to the page https://new.vk.com/dev/wall.post and fill in the required fields, specifying owner_id -124055633, message type111, attachments photo124055633_421764206 - here 124055633 is the id of the public, 421764206 is the id of the photo from the owner's album public https://new.vk.com/id371694878?z=photo371694878_42...and I press execute, but the photo is not displayed, the entry is added without a photo, the funny thing is that yesterday I added it 2 times normally with a photo , and then it just chopped off and I can’t do it since then, why, tell me newbu?