Thanks for your question about the compatibility to WordPress 4.9.6. I just checked my test installation and I’m not sure where you’re getting version 1.6.02. The Post and Page Builder is now at version 1.7.4 and the base plugin – BoldGrid Inspirations- is at version 1.58. You may have a very old version of the software. Make sure to check the available updates for your plugins. Most of the plugins have been tested for up to WordPress version 4.9.7 – the most recent version of WordPress. If you look at the Changelog (in the details for each plugin- you can see the released version. If you continue to have problems, then please provide more information about your versions (all the BoldGrid plugins and WordPress) and provide your domain name.
If you have any further questions or comments, please let us know.