I only have 20 open at the moment but I drew a 300x600 mesh and I didn't have the half snap points either.
I drew a small slab and no snaps for that either.
Until I turned the snap guides off and then back on again.
Seems it got stuck somehow.
Now when I close and re-open Archicad it works straight away.
Just checked 21 and that was fine as well.
Barry.
One of the forum moderators.
Versions 6.5 to 27
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
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