There is unfortunately one issue with the latest version related to loading of custom js files and the custom js textarea.
If you have a rule triggering onload that calls on a function loaded in custom js, this rule will fail with an error message telling that the function isn’t defined.
The reason for this is that the loading of the require.js script that’s used for loading all other dependencies will defer the loading of custom js for a few milliseconds – enough for the rules to trigger.
I have tried to fix it, and a new version of the DFFS_frontend_min.js file can be downloaded here.
Please let me know if this fixes the issue, and I’ll wrap up a full package of files with this patch.
Sorry for the inconvenience,