The grid has been updated with code to fix a pesky bug that prevented scripts attached to avatars and in some cases also HUDs from making the transfer correctly in that they stopped executing after a teleport or walking across a sim border.
After the update most scripts behaves as expected both on teleports between regions in addition to hypergrid teleports, and normal region crossings such as walking to another region.
The update should also improve the situation for some 64-bit viewers where visitors have experienced issues.