I’m encountering 2 different and perhaps unrelated errors. The first is a CORs error that indicates a problem with screenShot/preview creation.
The second error occurs when I update a previously published pages. The second error is due to an exception in mobx-state-tree. The result of the second error is loss of the entire page. The editor hangs with a dialogue showing “Publishing…”. Attempts to refresh the editor page result in an empty page with the message “Content entry not found!”.