Have you tried turning off potential control to see if copy quality changes and to see if the error comes back.

您是否尝试关闭潜在的控制，看看是否拷贝质量的变化，看看错误回来。

youdao

Copy and paste (or drag and drop) of pictures containing partial transparency now correctly preserves that transparency, rather than occasionally turning it black.

复制并粘贴(或拖放)含有部分透明的图片现在正确地保存，透明度，而不是偶尔关闭它的黑色。

youdao

Copy and paste (or drag and drop) of pictures containing partial transparency now correctly preserves that transparency, rather than occasionally turning it black.

复制并粘贴(或拖放)含有部分透明的图片现在正确地保存，透明度，而不是偶尔关闭它的黑色。

youdao