Adding another bug to the list for you.
I fixed the issue with images not being responsive on mobile, however I noticed that images with captions continued to break the margins. I was able to fix this with the following CSS:
@media (max-width: 988px){
.wp-caption {
/* Force the box to be 100% / width: 100% !important; } #content .wp-caption a img { / Scale down if too big / max-width: 99.03225806%; / 614/620 */
height: auto;
}
}