But the HX9V user manual at says:
Some Eye-Fi cards have an “Endless Memory Mode.” This product does not support “Endless Memory Mode.” Make sure that Eye-Fi cards that you insert into this product have “Endless Memory Mode” turned off. For details on setting “Endless Memory Mode”, refer to the operating instructions supplied with the Eye-Fi card.
Can Eye-Fi support please answer, what is the nature of the issue? Corruption? And update the compatibility page if there is, in fact, an issue?
(I'm disappointed to discover this as I have an HX9V and Eye-Fi on order.)