[CR #361432] Page group names have a 25-character limit. Once you enter 25 characters for the page group name, no more input is accepted.
For Japanese characters, 64 bytes are allocated for the page group name in the database table, so only 21 of the Japanese characters are saved for the group name, as each Japanese character requires 3 bytes in a UTF-8 database. This truncation gives no warning.
Workaround: Do not exceed the character limit when assigning names to page groups.
