When importing a JSON file in Apidog format, syntax error occurs

When importing a JSON file in Apidog format, if the characters “ソ”, “構”, or “能” are present, a syntax error occurs and the import fails. If these characters are escaped in the JSON (e.g. using “構” or “能”), the import works correctly.

These characters are commonly used in Japanese words such as “機能” (function), “構造” (structure), and “リソース” (resource).
Is there any workaround for this? Is this a bug?

If these characters are removed, the import succeeds. The error occurs no matter where these characters appear, such as in the description or name fields.