There seems to be two groups of Look up tables in the drop down menu, a top group and a bottom group. These groups of LUTs are seperated by a thin black line. I have noticed that the LUTs belonging to the bottom group, do not change the color of the image but instead, open up a new color bar named "Untitled". The LUTs in the top group behave normally ( the top group includes Fire, Grays, Spectrum etc; the bottom group includes 16_colors, 5_ramps, 6_shades etc.)

This has only been a problem since I recently upgraded FIJI. On another system where FIJI has not been upgraded there is not an issue with the LUTs. 

This problem also persists in different file formats, including .tiff; .jpg; and .asc (imported as a text image).

Information about your version of Java:

  os.arch => x86_64
  os.name => Mac OS X
  os.version => 10.9.2
  java.version => 1.6.0_65
  java.vendor => Apple Inc.
  java.runtime.name => Java(TM) SE Runtime Environment
  java.runtime.version => 1.6.0_65-b14-462-11M4609
  java.vm.name => Java HotSpot(TM) 64-Bit Server VM
  java.vm.version => 20.65-b04-462
  java.vm.vendor => Apple Inc.
  java.vm.info => mixed mode
  java.awt.graphicsenv => apple.awt.CGraphicsEnvironment
  java.specification.name => Java Platform API Specification
  java.specification.version => 1.6
  sun.cpu.endian => little
  sun.desktop => null
  file.separator => /

The up-to-date check says: UP_TO_DATE

Information relevant to JAVA_HOME related problems:

  JAVA_HOME is set to: null
  imagej.dir => /Applications/Fiji.app

Information about the version of each plugin:

Activated update sites:
ImageJ: http://update.imagej.net/ (last check:20140603101316)
Fiji: http://fiji.sc/update/ (last check:20140603102429)