I do know that the "old" generator produces pure rtf spec 2 or 3 something

.. whatever it was some time ago (too tired to go and fight with the rtf spec websites again).
I do not know, having never r_e_a_l_l_y tried to find out, what rtf spec the new generator is trying to comply with.
Having said that, let me now say this. Regardless of EA, I have had
exactly very little success with anything that attempts to produce anything past M$ rtf 3.7 (?? I think ??) as a viable document interchange mechanism. This includes many attempts to get rtf to interchange between different native versions of Office. In short, it as much a standard interchange mechanism as trying to use a line printer as a scanning device.
And.. as much as XMI, which can't even decide on a common definition, let alone a standard, of a <diagram> (which is probably the most germaine atom of a UML model)... I reckon !!!, that its about time that Sparx either gave up trying to flog this "new" generator and chucked it or ... wait for it... gave up
stuffing new and generally useless (non-working( functionality into the product and
fixed the basics.
regards
bruce ... currently looking for alternatives (ooh ooh a threat.)