Hi @Hayward ,
The main difference for v4.10.6 is that a new importer for Neoma was added. Perhaps that is causing the issue.
Would you mind sending an example .xml file that doesn't load to the iolite support email address? We'll use that to fix it for you.
To roll back to v4.10.5, you can download the installer from here:
https://iolite.xyz/appcast/
Previous Windows and Mac installers for the last 12 versions are available there.
Kind regards,
Bence