changeColor bug in Tabletop Simulator

sample.lua

--
-- Workshop: https://steamcommunity.com/sharedfiles/filedetails/?id=2311549480
--
setup_button_guid = "d6b9ab"

function onLoad()
  button_setup("Randomize Players", setup_button_guid, 'setUp', 7000, 2000, 800)
end

function setUp()
  radomizePlayers()
end

function radomizePlayers()
  printToAll("Giving each player a random color.")
  local otherColors = { "Yellow", "Orange", "Purple", "Pink"}
  local playerList = Player.getPlayers()
  for i, playerRef in ipairs(playerList) do
    playerRef.changeColor(otherColors[i])
  end
  local availableColors = { "White", "Red", "Blue", "Green"}
  for _, playerReference in ipairs(Player.getPlayers()) do
    local c = getRandom(availableColors)
    printToAll(playerReference.steam_name .. " gets color " .. c)
    playerReference.changeColor(c)
  end
end

function getRandom(tbl)
  local index = math.random(1, #tbl)
  return table.remove(tbl, index)
end

function button_setup(label, guid, function_name, width, height, font_size)
  local button = getObjectFromGUID(guid)
  if button == nil then
    print("Button '", label, "' does not exist, skipping it...")
    return
  end
  local button_parameters = {}
  button_parameters.click_function = function_name
  button_parameters.label = label
  button_parameters.function_owner = nil
  button_parameters.position = { 0, 0.2, 0 }
  button_parameters.rotation = { 0, 180, 0 }
  button_parameters.width = width
  button_parameters.height = height
  button_parameters.font_size = font_size
  button.createButton(button_parameters)
  return button
end