The code does not exist inside the ConfigurableContentArea Block.
There are multiple pages/blocks that suffers from the same issue.
I have tried to use "Revert to default" on affected content but that did not work.
I'm running the latest version of EPiServer.CMS to date (12.1.0)
Can confirm that this works now as of EPiServer.CMS 12.3.0. 12.4.0-pre-021848
However a manual reload is required for changes to appear.
No, nothing that serious :) The change would just not appear directly after i pressed delete. On two occasiosn I had to reload the page (F5) and after that the affected row would dissapear from the list.
I thought it wasn't going to be fixed until 12.4.0?
I have a solution just upgraded to CMS 12.3.0, and we're still seeing this issue there. There isn't even a Delete button present to click!