The same happens to the Canvas object (if I remember correctly) - IF it goes (partially) off-screen to the left or above - right and below are safe. I suspect it has something to do with their coordinates becoming negative.
Is that with pasting objects into canvas off screen?
If it is, its most likely from the way canvas grabs from the gpu.
Sadly anything pasted into canvas must be on screen for that to work.
However, draw works, ....minus the hotspot errors.