This has been happening on our server too. Items dropped delete even on persistence off server.

So I agree its been going on too much.

The trick is to log off completely, reload back in and sometimes it shows up.

In my experience, loot is not always there after I did drop a vest or backpack.
Don't know why this is happening but it does.

We saw that all droped items despawn very fast on the ground (the despawn order is random). We test it only on persistance on.
But the sense of persistance on is that the droped items should remain lying on the floor or not?

Its should and if items are despawning at the rate I am thinking your talking about something is rather bugged big time.

How much stuff you putting on the ground?

Just 1 item? doesn't sound exactly true by the sense of despawn.

Am I thinking over 100 items?

it was 1 mosin, one backpack, one smesh vest, 3 cans, 3 TTskO Jacks and one ttsko Pants (so in sum 10 items) as i see:
1 TTSKO jack and one smesh vest are deleted.
5-10min later i could see how the cans despawn.

Has any Mod or Admin registers this?
If you wear the things you will be killed by the cheaters and on the ground despawn the items. So the game is almost unplayable.

Yes, we are monitoring every ticket.
We've tried to reproduce this in a couple ways and it does not seem to be caused by a bug in the game itself but a hack. Which we are working on as well - please be patient.
Regards,
Andy

when i read this story, it made me think of a video i saw. the fact that you said 30 minutes makes it clear for me. here is the link: https://www.youtube.com/watch?v=baZsgySxqpg

Andy, the video is 2 minutes and explains how to reproduce

Yup, I am looking into it at the moment :).

great, glad you noticed it so fast!