Crossfading not working with cue_cut

[jdbuys]

Describe the bug
The songs are not crossfading when I have cue_cut included.
It also looks like the cue_cut and crossfade metadata like 'liq_cue_out', 'liq_cue_in' is not always applied.

To Reproduce

#!/usr/local/bin/liquidsoap
set("log.file.path","radio.log")
set("log.stdout", true)
set("server.telnet",false)
set("server.socket",true)
set("server.socket.path","lsoap.sock")
set("server.socket.permissions",511)
set("server.timeout",20.)
set("scheduler.generic_queues",2)
set("scheduler.non_blocking_queues",2)
set("scheduler.fast_queues",0)
set("scheduler.log",true)
set("init.catch_exn",true)
set("log.level",5)

delay = ref 3.
#Add error handler
def error_handler(the_error)=
  ignore(interactive.string("error_value",the_error))
  if string.match(pattern="401",the_error) == true then
    delay := 30.
  else
    delay := !delay
  end
  !delay
end

def crossfade(s)
  fade.in = fade.in(duration=5.0)
  fade.out = fade.out(duration=5.0)
  fader = fun (_,_,_,_,a,b) -> add(normalize=false,[fade.in(b),fade.out(a)])
  cross(duration=10.0,fader,s)
end

source = playlist(prefix="annotate:liq_cue_in=\"1.\",liq_cue_out=\"60\":",
             "/tmp/playlist.pls")
source = cue_cut(crossfade(source))
source=mksafe(source)
add_skip_command(source)
source=audio_to_stereo(id="source",source)


output.icecast(%mp3(stereo=true,bitrate=64,samplerate=44100),id="icecast",host="2.2.2.2",port=80,user="source",password="hackme",fallible=true,on_error=error_handler,name="Test",description="Test",mount="test",source)

Expected behavior
I would expect the songs to crossfade even when cue_cut is applied.

Version details

• OS: Ubuntu 19:04
• Version 1.4.0-beta2]

Install method
From source

[toots]

You should apply cue_cut after crossfade! 🙂

[jdbuys]

I have tried putting it before and after crossfade, and unfortunately no crossfading happens.

If the cue-cut is after the crossfade then the cue_cut works every time, but the crossfade does not.

If I put the cue_cut before the crossfade, then the cue_cut and crossfade works only once.

[toots]

Fixed, thanks for reporting!