Fusion 360 unlinking pieces

I’m having trouble with unlinking a certain piece of C-channel in fusion 360.
I go to break the link as usual (when i want to edit the length) but then it disappears. And I checked it’s not hidden and I can no longer select it - but when I undo the “break link” it reappears.
Thanks in advance

Are you capturing position before you unlink? Not doing that sometimes will create issues.


That may be it thanks - i’ll check and see how it goes