Webflow is incorrectly setting the sizes attribute of the .allow-images img elements it generates as part of the responsive image process. I would wrap those images in a div to see if that fixes it after republish. You could also indicate to Webflow not to use responsive images for those elements. This sometimes occurs when images are direct descendants of a parent with display set to grid.
To disable this feature for a specific image (e.g., if you need to force the browser to use the original image size):
Select the image on the Webflow canvas
Type Command + Shift + O (on Mac) or Control + Shift + O (on Windows)
Hi Jeff, I put the images in divs, and that worked at first, but now I am checking my website, and the images aren’t appearing again. Do you have any suggestions?