Fuji has had a bit of trouble with firmware bugs. Version 2.00 had a bug affecting how exposure compensation could be invoked. Version 2.01 came out which fixed that bug, but there is a bug in the selection of 24 hour (military) time or AM/PM time:
Time is locked to 24 hour initially and can't be changed to AM/PM unless you first set date format to YYMMDD. You can then select whatever you want, 24 hour or AM/PM. When you change the date format back to your preferred version (MMDDYY for me) your 24 hour or AM/PM setting will be preserved. If you want to change to or from 24 hour time in the future, have to temporarily set date format to YYMMDD.
Just a heads up for anyone that runs into this.