Poor Man won't properly load some images

Running a Poor Man webserver and some photos only load partially. Sometimes the console gives an error (error sending file: then the images path), sometimes it doesn’t. I’ve tried downscaling them, using them as jpg, png, and gif, but they always just never show up in the page, then when I open them as a direct path (rather than as part of the HTML file) they only load the top 10th or so. They all work fine when I load the HTML into the browser rather than through the server so it’s not an issue with the HTML code. The only image I’ve gotten to work fully is the one attached. Any ideas are greatly appreciated.

Under_construction_graphic

Try using python3 -m http.server 80 for comparison.

Looks like this is working! Thanks for the help!