Are these images pictures you took with your device, especially iPhone with a very recent iOS17+?
They've added new exif metadata that are messing up with image hosting websites.
Poal has that fixed already, for direct image upload (embed images in comments).
It's 2 pictures that I saved from 2 news articles. I saved them to my drive then uploaded to pic8. It's not accepting them. My 3d printing post earlier worked but it did work a little funny, I didn't get the usual thumbnail.