cannot write on sign in program?

Hello everyone

i just got started with my own little computercraft project and got stuck with this problem.
I wrote a function that basically gets an ID over rednet, places a sign and writes the message on it. Code:

function placeSign()
local id = reqNewSignID()
if id == nil then
  return
end

print("got id "..tostring(id))
turtle.place(tostring(id))
end

reqNewSignID gets the message over rednet and returns the id among other things. The output I get from the turtle is as expected but the sign is placed empty.

The strange thing is that when I do this over the interactive lua shell everything works fine

id=1
turtle.place(tostring(id))

What, exactly, does the print statement there display just before it places the sign?

Does reloading the chunk (by eg restarting the game) reveal anything on the empty signs?

What version of ComputerCraft are you using?

oh, ok. I was not sure whether this was a bug or just me overlooking something.

Thanks so much for this fast response!