Hello,
Thank you for submitting a question about editing themes after an upgrade. If you have purchased third-party themes (that is, themes not made by BoldGrid), they will not be optimized to use BoldGrid’s editor the way official BoldGrid themes are. They may not function as needed.
In your question, you mention purchasing themes and a BoldGrid upgrade. BoldGrid does not currently have individual themes for sale. So, it’s possible you purchased third party themes. It’s possible these themes may conflict with BoldGrid functionality even if you purchased a BoldGrid upgrade.
Regarding support, you are able to contact hosting support for BoldGrid if you are with one of BoldGrid’s partner hosting companies. If not, you can get support through this forum.
Best,
Christopher M.