Serial device not added correctly

[baltika_no_9]

Well you've added a device whose attributes match exactly those of a device that is known to OP and that is Device A. There is no further testing or validation; you've plugged Device A into a different port. I can't imagine a different outcome. Your'e matching against a (small) set of attributes, any device exhibiting those attributes passes the test. There is no actual correspondence between something presenting those credentials and any particular physical piece of hardware. I might try it out though!