i tried to develop new approval system using SFC, just a trial, if its fit for my nedds or not, but then i cannot delete any element on the SFC designer.
i dont know, i might doing something wrong, so i updated ignition version to the latest version v8.1.43, but still cant delete element on the SFC designer.
For posterity, as late as it may be, this case was a result of a small MacOS keyboard rather than an Ignition bug.
The MacOS shortcut for delete is the 'Delete' key, but many MacOS laptops merge the backspace and delete keys into one dual-purpose key, somewhat confusingly marked as 'Delete'. In these cases, you can press Fn + delete to call the delete function which should properly delete the selected block.