I just tried again and this time the hotspots are moving when the beam or wall are stretched (modified).
However the dimensions do not associate with the beam hotspots.
They show as associated when placing (round target icon) and when you hover over the dimension node after it is placed, it still highlights the beam as if it is associated.
But the dimension definitely does not stretch when the beam is stretched - it does for the wall.
I have just reported this as a bug.
If others can replicate this and report it also, it may get more attention.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11