Hi,
We have fixed the issue.
The problem was that the function for getting image dimensions only supported JPEG images. It was made with speed in mind, so it would only download just couple first bytes to check the image size, instead of downloading the whole image as built-in PHP functions do.
But, the issue was that you had a PNG image on your website, and JPEG and PNG have completely different metadata, so our function failed, as it could be expected. (it was an oversight by us)
We’ve now created a second function, for retrieving PNG image dimensions, very fast.
This is just an assumption, but the functions we use could be 10 to 100 times faster than PHP built-in functions, depending on image size.
Thank you for reporting the issue, and thank you for the patience until we resolved it.
Please report anything else you might find. ??