The value of the tag is not encoded in UTF-8.
The value of the tag contains characters that are not encoded in UTF-8.
Make sure that the object tag meets the following requirements:
You can add up to 10 tags to an object. The tags added to an object must have unique keys.
A tag key can be up to 128 characters in length. A tag value can be up to 256 characters in length.
Tag keys and tag values are case-sensitive.
The key and value of a tag can contain letters, digits, spaces, and the following special characters:
+ - = . _ : /
If the tags of the HTTP header contain characters, you must perform URL encoding on the keys and values of the tags.