It is 4.3.4 and it is a trend report. There is no masking involved and is a fairly straightforward report. It is a sales and marketing expense report that they send to different regions so they want page breaks between them (there are about 8 regions). The page breaks work for all of them except midway through, two smaller regions are one page. (There are other small regions that do page break correctly.)
I don't doubt these sorts of problems will continue as time goes by but thought i would reach out to those of you who might still work with custom financials just in case... (And thanks Wayne and Jeff for being honest!)