Prior to update from 1.0.6 versions of the plugins, this was fine – now it is a mess
[gallery type="justified" link="file" columns="2" captions="1" row_height="300" ids="21658,21659,21660,21661,22618,22617,22616,22614,22615,22613,22611,21660,22612"]
This one renders in 3 columns – despite being told 2 – the captions are a mess – this is from a post prior to the update
[gallery link="file" type="justified" columns="2" size="full" ids="21658,21659,21660,21661,22618,22617,22616,22614,22615,22613,22611,22612" orderby="rand"]
This one – inserted using the Add Media button – renders images in full-size, stacked on top of one and other