Hey @leocaserta - this appears to be caused by the data/CCTL_sequencing/metadata_03-09-23.tsv file using windows (windows-1252) encoding - would this seem right to you? There are lots of ways to convert a file to UTF-8 (e.g. for windows, for unix, using vs-code) so I would suggest trying that and seeing if that fixes things. Good luck - and let us know how you get on!