I have uploaded v0.94 of NodeShark which fixes a "Nil object exception" that crashes the app when the user attempts to play a playlist item and they haven't put a trailing "\" in their Target path specification. This fix makes the trailing "\" optional (it'll work either way now). Also combed through the source code and added a few other missing checks for nil pointers prior to dereferencing.
Many thanks to Ken, KE2N for helping me to reproduce this bug!