Hello! First of all: amazing software. We should have this years ago!
I found (at least, I think!) a bug. When copying atask, rename the new one and add an action to stop "This task", the name of the old ORIGINAL task is displayed. See picture. The .tsk name is different though, so the copy went well....
Stop task action can stop any task. So it writes the task ID in its parameters.
When you copy the task then the actions parameters are the same. Therefore you have to correct parameters:
Open the "Stop task" action in action editor
Specify "This task" parameter again
If you see incorrect name of step you can reset it to default.
Right-click on the step and choose "Reset to default"
Look at the screenshot:
reset-to-default.png (24.46 KiB) Viewed 23280 times