Type of bug

Other unexpected behaviour

/ess version output

[10:24:30 INFO]: Server version: 1.16.5-R0.1-SNAPSHOT git-Airplane-"8c50125" (MC: 1.16.5)
[10:24:30 INFO]: EssentialsX version: 2.18.2.0
[10:24:30 INFO]: PlaceholderAPI version: 2.10.9
[10:24:30 INFO]: LuckPerms version: 5.3.3
[10:24:30 INFO]: Vault version: 1.7.3-b131
[10:24:30 INFO]: EssentialsXProtect version: 2.18.2.0
[10:24:30 INFO]: EssentialsXGeoIP version: 2.18.2.0
[10:24:30 INFO]: EssentialsXAntiBuild version: 2.18.2.0
[10:24:30 INFO]: EssentialsXSpawn version: 2.18.2.0
[10:24:30 INFO]: Citizens version: 2.0.27-SNAPSHOT (build Unknown)
[10:24:30 INFO]: ChestShop version: 3.11 (build 213)

Server startup log

https://pastebin.com/EpnrgbL1

EssentialsX config files

https://pastebin.com/ywp5r5uN

Error log (if applicable)

No response

Bug description

If you do /invsee [player] and start moving their items to your inv, the items start glitching. They delete, move slots etc etc. Here is a gif:

https://gyazo.com/c080707dde276b87d67a369f6bdb5890

Steps to reproduce

1. Invsee a player
2. Move items from their inv to yours, just like the gif above

Expected behaviour

Items shouldnt delete

Actual behaviour

Items delete / move

Update:

The items that dissapear actually go into the armor / off hand slots. Look at this...

Boots on my head and trident as leggings?

Duplicate of common issue: #3956 (comment)