In case anyone is interested, I think I found the problem. Turns out there is an extra colon in the .cr2 file for this particular shoe. I figured that out by comparing the .cr2 for this shoe and one of the others that loads okay. Just open up (using Notepad or Wordpad) the "V3 7inc Spikeheel.cr2" file under content/runtime/libraries/character/Red Sandal. Notice that at the very top of the file, in the first "figureResFile" line, at the very end there is a hanging colon ("...Shoes:RedSandal:V3_Red_7Spike.obj: "). Just delete the colon, save, and you're good to go.