Hi, I have upgraded Umbraco from v9 to v12.0.0. I achieved this by progressing through the previous major versions. We are still using the old grid layout. As far as I know, the grid layout is deprecated but not entirely removed in future releases. However, we are experiencing an issue with the RTE (TinyMCE). The toolbar is hidden somehow. We don't have any specific configurations for this. Everything is configured using the grid layout Toolbar settings. Further debugging shows that the toolbar is hidden by CSS from the skin.min.css loaded from ~/umbraco/lib/tinymyc. The "umbraco" folder no longer exists under wwwroot, so I am guessing that this is loaded from the Umbraco UI package. The RTE does work perfectly with the Block Grid, so this issue seems to affect only the grid layout. Since we are not ready to migrate the content yet, I need to find a fix for this. Any idea on how I could resolve this? I could try to resolve it by removing the CSS class that hides it with a custom module, but I'm not sure if that is a good workaround.