hello, please try my modpack and try to drop any item in the world. if you have no time, here is the latest logs:
2017-05-14-3.log.txt

problem: when i try to drop any item by pressing Q, my server(internal server, single player world) stops running and the game returns to the multiplayer tab(my world closes instantly or just freezes)
it doesn't happen if i drop item in inventory gui (dropping on space)
and it doesn't happens without Itemphysic.
it wasn't happening before, i just updated some mods and optifine, forge.
please help, thanks..

There is no crash report, because i tried it in singleplayer. I created a world, pressed Q with an item, then it said shutting down... and game returned to the multiplayer tab. I checked the folder but couldn't find any crash report, because game was alive. Thanks...

Could you send me the crash report of the server (it looks like you send me the crash log of the client)?

This error is weird, but it looks like santa.ping seems to be the issue here. Could you turn of fallSounds of ItemPhysic (in the config) and see if it is fixed?

let me try.

uhm no, it didn't work.

i deleted the ping mod also, still crashes (game freeze)

any other idea? :(

still waiting for help :( we can't drop any item :(

Sorry, i have been rather busy. Could you try to find out which mod is conflicting? I don't know how many mods you have installed, but it would really really help, if you could go through each mod and test if it still occurs or not.

okay i'm making tests...

but i don't understand why it doesn't crash, just freezes...

hey, it's fixed when i delete IGCM.
test 1: Creative Core + ItemPhysic = works fine
test 2: Creative Core + ItemPhysic + IGCM = freeze/crash
used forge 2296, CC 1.7.3, IGCM 1.1.4, ItemPhysic 1.4.4
please help...

help please...

oh wait, it fixed when i delete configs too. hmm.. let me test it more
edit: it's not happening when i delete my IGCM .nbt data file (in config) which has my custom recipes, options etc. what should i do? you want me upload my IGCM config files?

here is my IGCM config file. if you put this into config folder and install CreativeCore + ItemPhysic + IGCM, your game will freeze when you drop any item by pressing Q. i don't know what is the problem.
https://drive.google.com/open?id=0B6b0yPfoStOGb1NZdkRZbjEyZkk

Sorry, still rather busy, i will try to take a look at it today.

thanks :( hope it will be fixed. we can't drop any item :( it's terrible...

well, i remade all recipes in igcm from zero.