Pakon rendering is broken

Am using Pakon 1.2-17. Pakon wasn't working for me for ages, just showing a whiring circle and never finishing. But recently started working again and with a lovely new infographic. Nice. Alas when it works it's nice, but when I search sometimes for lots of just one client as in the image below, the rendering is broken.

If I look at the page generated, even though there's a clear tagcloud the returned table is empty:

<tbody id="pakon-table-data"><tr><td></td><td colspan="7" id="no-data">No data</td></tr></tbody>

And the positioning of the cloud is way broken.For some reason the tag cloud is rendered with a height of 0:

<div id="tagcloud" style="height: 0px; width: 750px; margin-left: -375px; left: 50%; position: relative;">

So that it is in effect on top of the empty table rendered under it. So two problems in one.

A shame, as I love Pakon immensely for keeping watch on my kids. But if I filter on one kid or just expand the date range (as in the pictured example), blam this sort of thing happens.

There is data in the tag cloud, but some other part of Pakon thinks there is no data (so zero height tag cloud - which is actually full of data) and an empty table.