redstone overlay doesn't render well when going up negiative z and positive x

when placing redstone I noticed the overlay didn't render in certain situations
the resourse pack doesn't edit ANY model files and is compactible with the latest snapshots
reproduce:
go up a block with redstone at positive x or negative z
on the ground below has to be cross or line, not corner

see pictured below
the one who disappears goes up at negative z
the other I can't explain, however they go up at positive x