Hi @mjholleratme ,
Thanks for reaching out!
I understand that the Gallery block is not working correctly in the front-end, however, there are no issues in the backend.
As a first step, please could you clear all site and browser cache to see if this makes any difference:
https://www.wpbeginner.com/beginners-guide/how-to-clear-your-cache-in-wordpress/
If that makes no difference, I would recommend a conflict test to rule out any theme/plugin conflicts. To do this, please do the following:
– Temporarily switch your theme to Twenty Twenty-Two
– Disable all plugins except Gutenberg
– Check if the issue is still present
If you’re not seeing the same problem after completing the conflict test, then you know the problem was with the plugins and/or theme you deactivated. To figure out what is causing the problem, reactivate your plugins one by one, testing after each until you find the one causing conflict.
Please see the below documentation for a more detailed explanation of how to do a conflict test here:
https://wordpress.com/go/tutorials/how-to-manage-wordpress-theme-and-plugin-conflicts-with-three-easy-tactics/
You can clone your site to a staging environment and perform tests without modifying your live site or impacting customers, using the free WP Staging plugin.
Please let me know how this goes!