690378221 只是我想让你知道我已经找到了解决这个问题的方法：似乎这个问题只发生在Resample被设置为Bilinear或Nearest的时候，所以如果你把它设置为Bicubic，即使比例值为0.49，纹理也能正确打包。如果你很着急，请试试。
Just I wanted to let you know I have found a workaround for this problem: It seems that this problem only occurs when Resample is set to Bilinear or Nearest, so if you set it to Bicubic, the texture will pack correctly even with a scale value of 0.49. Please try that if you are in a hurry.
