IIRC this is intentional. IRL, you cannot put a LRS on a Mosin, only the PU scope.

I reported the same issue, it is already acknowledged by the devs.
http://feedback.dayzgame.com/view.php?id=24374

First of all Engine != Renderer. Renderer is the part of the engine that creates the frames that you see on your monitor. Mainly responsible for FPS.
If you had checked the Status Reports and other sources, you would know that they are reworking the whole engine including renderer. But it takes time. Not an easy task. Be patient.

Checked again, every item that supposed to be on the back of the player is on the floor.

Only melee weapons so far

Thanks,
btw "It happened on the south and south-east side of the island." in the "Steps To Reproduce"-Section, I meant north and north-east.

Experienced the same on Prison Island. Attached some pics

I added new crash dumps from my second session. I hope that will help you

I made a similar request: http://feedback.dayzgame.com/view.php?id=21416

I totally agree with you. The PVE aspect of the game would benefit from it. Plus I think, it isn't that hard to implement.