Image rendering in Microsoft Copilot stuck at rendering 1024x1024 images

I've been using Microsoft Copilot for my image rendering hobbies. As of last night, Microsoft Copilot has been stuck rendering images at 1024x1024 resolution (assuming it passes through) even when I have asked it to render images using a landscape orientation with a screen resolution at 1536x1024 (multiple times). Either it renders in 1024x1024 or not at all. Is there a reason why this is happening, and when will this be restored? (I'm currently a free user of Microsoft Copilot.)