Hi @nathan-allen,
The only thing you can do now is to remove the existing “Features” block on your website and add a new one in the same place and edit it to your needs. Basically, you need to recreate the existing “Features” block anew. That way it works fine again.
Unfortunately, these types of issues are frequently common after updates of the new WordPress block editor (Gutenberg) from my experience. And so, I can only presume they will occur in the future too (not specifically with “Features” block of this plugin, but with others too)…
But once you set up your “Features” block correctly now, you should be perfectly fine in the future even if something changes. It’s just that you installed the theme demo content with dysfunctional “Features” block just at the time WordPress and CoBlocks plugin were being updated and the demo content of the theme is not.
It really seems like I need to check theme demo websites of my themes that use Gutenberg editor and fix what’s needed so the demo content is updated for WordPress 5.5.x. I wish Gutenberg editor had better implementation to fix similar issues… (From what I can see, the only issue in this case is upper- vs. lower-case letter in HTML output of the block and Gutenberg editor gets stuck on that little thing!)
Best regards,
Oliver