The following change was made in XPP 9.5 to address balancing previous columns from a tag that ends a page
A new value, endtag-balance, has been added for the Every Page: Balance/Align Columns field in the Pagination Style Spec (PS). This value causes Compose to balance the previous columns when a page is ended by a tag. The endtag-balance value is supported for the CSS -xpp-ps-hdr-baleop property.