Changing the JCH level to Advanced works great!

There's a lot of images (by checking on /index.php?option=com_jmap&view=sitemap&format=images&xslt=1)
but now... I've 11627 images which are the same! URL is /media/plg_jchoptimize/images/placeholder.gif

I'm using LAZYLOAD under JCH (a new option in their 4.2.3) which is making my website faster.
It seems this option is making XML IMAGES generation wrong...

What can I do John?
Thanks for your time,

PS: I don't want to disable LAZYLOAD option under JCH.... it's really impressive!