Bug report: category pagination

I’m using the free version of WPDM along with the WPDM Extended Shortcodes addon.

I’m using the following shortcode…
[wpdm-all-packages items_per_page="25" categories="CATA,CATB,CATC,CATD,CATE" jstable=0 order_by="title" order="DESC"]
This works perfectly, and displays many pages of files.

However, if I then pick a row and click on the category to show only downloads in that category, if that category has more than 25 rows, the page links are not being formed correctly.
For example, the link to page 2 looks like…
https://xxxxx.com/downloads/?wpdmc=CATA/page/2/
This doesn’t work. It should look like…
https://xxxxx.com/downloads/page/2/?wpdmc=CATA
which does work.