The Slime Mob Soul Item is flickering through the different sizes like crazy...
Probably there is the same issue with the Magma Cube, but i didn't gotten this item yet.

Sorry for the horrible english...
Greetings from Germany

Yea thats a problem with all slime like mobs including the Tcon blue slime. I will get around to fixing it eventually but its not a high priority.

Okay

There is a little problem with the Draconic Chest in combination with the auto-sort from InventoryTweaks too. If there are some items in the furnace-slot while autosorting, they jump into the chest and the items that should appear exactly on this solt go to the players inventory...

hopefully you understand what I mean :D

Unfortunately there isnt really anything i can do about the sorting in the draconic chest because inventory tweaks doesn't have any way to manage complex inventories like that.

Unfortunately no thats what i meant when i said inventory tweaks doesn't have any way to manage complex inventories.

As for the nei thing thankyou for pointing that out i have noticed it but could never figure out what was causing it so i just assumed it was a random nei bug.

Isn't it possible to block the furnace-slots from sorting?

Unfortunately i found an other little issue... If i teleport with the "Enhanced Charm of Dislocation" between two Dimensions (in my case from the Nether to the Overworld) the NEI-Gui disappears (and i can't toggle between "show" and "hide" with the "O"-shortcut anymore)