Umbraco Grid Concerns

As a HUGE fan of Umbraco, writing in a WordPress blog, I was really concerned about a recent discovery. I had a site running locally under 7.4.2 which was using a number of different Grid layouts for the blogs and press releases. No issues, no bugs, just ticking along nicely. Then I spotted the 7.4.3 release and did the upgrade.  When I was browsing the site there wasn’t any visible differences, so I was fairly pleased with the upgrade. However, when I went into the actual backoffice the grid items had great big error messages on some of the grid row types.  It...