Hello,
I notice that when I use the REST api it allows me to post a processor to the board when there is already a processor of the same name. In other words, once this is done there are now two processors of the same name on the board. When I do this via the GUI, however, it automatically appends "Copy" to the processor name so that the names of all of the processors are unique. I know this may not cause obvious issues right away since UUIDs are used to identify the processors, but this could be a barrier depending on how they are being used.
