Index not formatting correctly when using the Latin Symbol small letter "e" with acute

Hi, I'm writing a document with Latin based names that require symbols and creating an index.  I am having trouble with the index in regards to the name "Vélez."  It gives multiple entries instead of one entry with with all the page numbers and subentries.  In troubleshooting the issue, I find that if I replace the "é" with "e" in the entry field, it works like it should, but then the name is incorrect in the index.  Another name, using the Latin small letter "i" with acute (í) also works fine in the index.  Seems to be a bug, but does anyone have any ideas?