Potential bug in "Copy word counts" app.

When working with character-based languages such as Japanese and Chinese, we found two errors: firstly, when copying into an excel, the characters within the filenames corrupt i.e. become garbled. Secondly, it doesn't copy the word counts for all the files selected. It tends to miss the last 5 or so files. I wondered whether this was something you are aware of and looking into fixing? Many thanks in advance!

An example of the corrupted characters can be found below: