I'm encountering the same error using PostgreSQL and MySQL.
not at all sure what is happening. I didn't see any mismatch with character encoding.
I also joined your slack channel with a new subchannel https://fusionauth.slack.com/archives/C05R6G25472
with a list of steps and files I used to run this. I can't figure out what FusionAuth is expecting or I'd set it.
-Ian