This has been an issue since the 3D editing plane was introduced.
I think I've only experienced this with library parts and doors/windows.
The issue: When editing in the 3D window, I'll have beams placed facing N/S and Beams placed facing E/W. When I grab the hotspot to stretch one of the beams facing N/S, it doesn't stretch, in fact none of them facing a particular direction will stretch. However, all of them facing in the perpendicular E/W direction will stretch normally. The direction is arbitrary as far as I can tell. Sometimes the E/W editing doesn't work while the N/S editing does.
This happens with doors/windows also - I can drag them along a wall normally, but sometimes if I try dragging in a wall perpendicular to that wall, it won't move. The problem seems to go away if I switch out of the 3D window, back to 2D and then back to 3D a few times.
I've been dealing with this for quite some time, but would like to find a better workaround or a fix so I can speed my modeling time back up to normal.
Anyone else experience this or have a method for a quick fix when it happens?
AC 6-27 - Intel i9-9900K - RTX3090 - Windows 11 - 64GB RAM