Hello,
You changed not the image but the slider layout type to full-width. So, the height of the slider changes depending of the device with and that code is not very suitable in this case. You may try to replace
.vc_row.wpb_row.et-custom-height {
min-height: 436px;
}
with
.vc_row.wpb_row.et-custom-height {
min-height: 50vw;
}
And
.et-custom-height {
min-height: 200px;
}
with
.et-custom-height {
min-height: 312px;
}
But not sure if it helps a lot.
Regards