[0.18.32] invalid message appears after tutorial ends.

[NAPA]

invalid message is:

[font=heading-2]
[font=default]
[/font]

[Klonan]

What language is this?

[valneq]

This looks like Japanese.
Apparently, the translators forgot a [/font] for the heading:
https://crowdin.com/translate/factorio/132/en-ja#41804

[edit] Just added the [/font] on Crowdin, so it should be fixed for the next release. Can someone with the ability to read Japanese please confirm that I did not mess up the string on Crowdin?

[NAPA]

It is Japanese.
I confirmed that the Japanese translation of cloudin that reflects the change of the'[/ font]' command is good.