Multiplayer: Characters shadows are duplicated to other Character

in Multiplayer Mode: Shadows of the active Character are duplicated to the other Character.
Used: Plain ThirdPerson Project with “Desktop/Console”, “Maximum Quality” and “With Starter Content”.
Start play with:
Number of Characters: 2
New Edit Window (PIE)
Move the Character either on Server or on Client to the front right corner, so that the whole characters gets into the shadow there.
Now you can see, that the back of the character in the other windows gets a shadow on his back.
See attached screenshots:
WrongShadow1 shows active Character in the sun (left window).
WrongShadow2 show active Character in the shadow (left window) → now you can the shadow on the back of the other character (right window).
Found in UE 4.11.2 and in 4.12.3

Hello SimSal,

Thanks for taking the time to enter this report. I was able to reproduce the issue and have gone ahead and entered a bug for this issue, UE-32539. Once the issue has been addressed by our engineers, the fix will be added to the release notes for fixed issues within an upcoming full engine or hotfix release.

Let me know if you have further questions or need additional assistance.

Cheers,