I just updated the pro plugin to Version 1.4.27 (released today) and everything started working.
I just upgraded to the Pro version and created a rule with the product category and with the cumulative option enabled. The discount is still not being applied. Only now the discount is either applied for different sizes or for same size. What am I missing?
Thanks for getting back..
I managed to sort it out with this code:
.blog-columns .entry-header .entry-meta {
display: none;
}