Items go missing after laser tag

[cougarboy]

What is the bug: I joined laser tag with some things in my inv, more specifically, my miner pick in my hand. I play laser tag and lost. I returned back from it not realizing my pickaxe was gone.. When block party was announced is when I noticed my pick was gone.

Where is this bug located: Laser Tag/ My inv

How can we recreate it: Have something in your hand, and lose a game of laser tag

* I don't have any screenshots unfortunately. *
* The pickaxe was in my last slot in my hotbar, if that helps *