I cant help, other than to say I'm not seeing this effect.
Ive just had LR mobile open in split screen mode, along with the photo stream app and viewing about a dozen images, both originals and jpg results in me seeing the same thing on both sides.
I see. Any idea what might be happening with my files? I may just have to phone adobe support and see if they can help resolve my issue. Thanks.
This thread may be similar in ways.........
If not though, try posting on that Forum as Adobe employees are likely to answer.
I'll look into it. Thank you.