On the matter of TFCC/Botcon QC issue related vents, my own are:

TFCC Punch/Counterpunch - Head/automorph feature would not automorph properly, however that was easily remedied by disassembling the chest and a quick adjustment to the innards.

TFCC Sideburn - Plastic on left wing tip dented one side, a rather ironic QC issue, as the QC Burn here was on the figure's Side. Might be able to refix it into place if I used a hot flame quick enough (but scared to discolour the plastic).

Botcon Sharkticons - One of the Sharks has a crooked spine The joint that connects the submarine cockpit area to its back is mangled, causing the back kibble to not sit straight whilst in robot mode - further causing the fig to be more back heavy and prone to falling backwards than the mold already is.