I have tried this and it works perfectly. I cannot reproduce the problem. Are you using Ctrl D to delete the element when on its spreadsheet? I don't notice anything strange with my cursor on the From Node or To Node.
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Loren Brown
Director of Technical Support
CADWorx & Analysis Solutions
Intergraph Process, Power, & Marine
12777 Jones Road, Ste. 480, Houston, TX 77070 USA