Tested with 3.3h24 but probably same in all builds.
Cue 1: playfwd inframe 1 outframe 301
Cue 2: playfwd inframe 302 outframe 600
Cues 1 and 2 only execute correctly once.
Cue 1 will not execute correctly after cue2.
Catalyst is very naughty! On basic stuff like this it should do what it's told.