Serving Scaled Images

Hi there,

I’ve used Smush for some time now but only recently availed of the trail run for 7 days – I’ve smushed all the images I’ve been able to smush – some are being highlighted with the following error ‘Couldn’t process image due to bad headers. Try re-saving the image in an image editor, then upload it again.’

However my main concern is that when I run a speed test I’m faced with an issue of not serving scaled images. Am I doing something wrong?

Looking forward to your advice,