4o/4o-mini not always analyze image

There was an API outage on August 16. I would like to ask you, does yours 4o/4o-mini models are correctly analyzing the image via API request? I upload an image to Imgur before sending it to the assistant and send attaching it to a message. For some reason, when I give it a request to analyze and understand what’s in the image, it doesn’t always work. I had not noticed this problem until yesterday with me.