It wasn’t as much of a fix, as trial and error. I had originally wanted 4 columns, but I just kept trying numbers (starting with 3) – until magically the theme fixed itself, and at 6 columns, they evenly spaced themselves and displayed properly.
Sorry it’s not a real fix! But, I’m sure you could try it for yourself, and see what happens…
Thanks,
Jess
Thanks – it was resolved over night in a private message. Thank you both very much for your help!