缩小时矩形消失

Question

我在画布上有允许缩放的元素。但是在某些级别的缩放时，会出现下图所示的问题。没有绘制矩形。当我查看可视的活动树时，检查矩形是否仍然是元素的子级。一切看起来都很正常。当我放大时，如您在第一张图片中看到的，矩形再次出现。

以下是画布中显示的元素：

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谢谢！