As we work on improving and upgrading Glow Blogs some of the themes currently in use are not compatible with newer versions of WordPress. These are going to be retired, first made unavailable in the theme picker from Tuesday 17th December and next year removed from Glow Blogs altogether. Glow Key Contacts will be receiving advice.
More information is available on Glow Connect
If you are using one of the listed themes you start thinking of changing to another one. We have information on changing themes here. Please leave a comment or get in touch if you need more information on changing themes or need advice on how to support a particular feature.