I was having the same problem. I finally just caved and decided to reformat my computer. Poser has been doing weird things on me lately. One day the INJ worked, then a few days later they didn't. I reinsalled the base figure and the head and body morphs, and then some INJ worked, and some didn't. Figured it was less headache to just reformat and reinstall everything than to figure out what Poser was up to.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi