Garmin Connect Forerunner 245m

I´ve got the Foreurnner 245m and now I got a new one (the old one was defect). In Connect it shows the training status from my old and new one, but than the old one is shown as "unknowm"... how can I delete it? Its not paired, its deleted from my devices, but connect does it show...

Also trainingsstatus has gone from my dayli view, do you also have this issue?