How to install plastic glove box liner?

[LukeC10]

Ran into another issue with the latch/lock assembly; purchased all new stuff from LMC, the latch looks fine and like the original - but the lock/knob is stripped down and like hollow - it doesn't have the spring clip things that hold the knob into the latch, so it just falls out! Anyone else ran into this buying a new lock knob?

Thinking about buying one from another company that hopefully has the spring loaded clip things.