Please make a selection

Not sure if this is HikaShop or Joomla, but ever since I updated to 2.5, when I try to "make a selection" it won't let me.

Like, if I select a few products and then try to publish them, it says "please make a selection." I can get around this because I can simply hit the little green or red button for each product individually to activate.

However, when attempting to add characteristics, it again says "please make a selection", but I did!

I've tried multiple browsers (Firefox and IE) and with multiple computers.

If this is HikaShop, great, let me know what I need to do to fix it.

If it's Joomla, does anyone know how to fix it?

It is apparently Joomla specific:
forum.joomla.org/viewtopic.php?f=622&t=6...f&p=2757260#p2757260

In my case, I can't make a selection and then publish, delete, or anything, in Firefox, Chrome, or IE. However, oddly, it works fine in Safari.

In most cases I'm able to work around this issue because I can just simply hit the individual publish button on a product or article. However, when adding characteristics, this is not an option.

But like I said, I think it's Joomla that needs to fix it, and it works fine in Safari for now. Just weird.