I'm not having this issue, and am able to copy/paste to, from & within other call out fields.
Design Manager Streetscape Ltd
Solid Edge 2019 [MP1] Classic [x3 seats]
Windows 10 - Quadro P2000
stand corrected. still love to know why it's there?
Called in my problem. It's a know problem and should be fixed in mp2 or 3. work around is CTRL-C then CTRL-V
I beleive that it's only purpose is in a case where you do not embed the text in the leader but instead show the text on top of the leader line, then the secondary text shows below the line.