How critical or important is the material's stock temperature when it goes into the feed throat of the molding machine?
For instance, if your loader on top of the injection unit is rather large, and a large amount of material is outside the drier for extended
amount of time, can it be a source of process inconsistencies?

In my case, I have a clear polycarbonate part with an unscrewing rack that seems to start out fine.
After running for awhile I start getting intermittent voids, always in the same, thicker area of the part. We have checked all waterflow, venting, material moisture, etc, and everything looks like it would be ok.
But the problem persists.

I'm looking at all possible causes for the issue and one thing that occurs is the almost 2 hours that the material is sitting in the loader and magnet box before actually being fed into the injection unit.
The material at the feed throat still passes the moisture analysis but they are actually cold at this point. Could this stock temperature reduction lead to something like the voids I am fighting?
Thanks.
James