SQLSTATE[22001]: String data, right truncated: 1406 Data too long for column 'title' at row 38

I can replicate this locally with MySQL 5.7 but not with 5.6.

I’ve logged an issue for it here:

The fix that is developed for that may work to resolve this for you. I’m not 100% sure since on 5.6 it works OK for me as it stands.