Hi Charlie,
Congratulations on the new beta!
I have come across a saving error, which is hard to describe exactly where it fails. In a standard text element, I have bottom margin already set to 20px.
I then did a few things:
- Entered
200pxinto the left margin field and hit enter to change fromemtopx. - Used the new Modified Controls to reset the margin settings.
- I had also created a single variable in the new settings and used that in the same left margin setting, to see how it worked.
In one or other of the above steps, when saving either manually or autosaving, I got an error message at the save button.

The consolse shows the below, which may help.
Thanks,
Christopher
