Two issues here with the hypergrid but they might be related:
1) TP from varregion in homegrid to a single region in another grid crashes the viewer. See backtrace in hgtpcrash in attachment (I hope I did it right)
2) TP from single region in homegrid to single region in another grid causes me to arrive, except the entire destination region is a total void. No water, avatars (not me either), no nametags, prims or terrain. See hgtpvoid in attachment. This session is without a crash.
In both sessions I see Octree warnings