Text editor suddenly ignoring stylesheet?

The SiteOrigin Editor widget suddenly seems to be ignoring the site’s css. The back end editor works fine, but when the content of the widget is saved and then viewed in the front end, it seems that the css is not being applied — or a different css is being applied. For example, bulleted items appear fine in the admin side, but when viewed in the front end, there are no bullets. And photos aren’t being positioned correctly — the class=”alignright” attribute is ignored (again, only in the front end — it looks fine in the back end).

This just seemed to happen so I’m not sure what’s going on.

I have updated the widget to the most current version.