Dynamic stage does not render
It's possible after an upgrade of ServiceNow for the Stage record to show an error of “The entity name must immediately follow the '&' in the entity reference.”, instead of rendering the dynamic stage fields.
The solution to this issue is to update the following properties:
glide.ui.escape_all_script = true
glide.ui.escape_text = true
Further details can be found in this ServiceNow KB article: https://hi.service-now.com/kb_view.do?sysparm_article=KB0656916