买入和卖出信号在图表上相差甚远

我尝试根据以下策略生成的信号绘制图表。但我从脚本中观察到的是蜡烛的信号产生点不同。如果有人知道这一点，请帮助我。作为参考，我附上了下面的快照

1. 买入信号快照 https://i.stack.imgur.com/RLtoP.png 2. 卖出信号快照 https://i.stack.imgur.com/TNXyu.png

//@version=4
strategy("My Strategy", overlay=true)
orderType = 0
longCondition = crossover(sma(close, 14), sma(close, 28))
if (longCondition)
    strategy.entry("My Long Entry Id", strategy.long)
    orderType := 1

shortCondition = crossunder(sma(close, 14), sma(close, 28))
if (shortCondition)
    strategy.entry("My Short Entry Id", strategy.short)
    orderType := -1
plot(orderType,"OrderType",color.black)

//@version=4
strategy("My Strategy", overlay=true, process_orders_on_close=true)
orderType = 0
longCondition = crossover(sma(close, 14), sma(close, 28))
if (longCondition)
    strategy.entry("My Long Entry Id", strategy.long)
    orderType := 1

shortCondition = crossunder(sma(close, 14), sma(close, 28))
if (shortCondition)
    strategy.entry("My Short Entry Id", strategy.short)
    orderType := -1
plot(orderType,"OrderType",color.black)