If a window, or a glass object renders black or matte, this could potentially be happening due to the updated glass material type.
To resolve this, move the 'Base color' slider up to the brightest/most saturated end in the color picker. Please see the screenshot for reference - in this example, it has to be moved from black, up to the brightest red:
If the issue persists, contacting the Enscape support team is the best course of action, as we’ll be able to review the logs and advise accordingly.
To help you with that, we have prepared this article, detailing the process on what you can try on your own and how to contact Enscape’s support team.