My bigger issue right now is I can only render sequences by spooling rendered frames into preview window (40-60 at a time) then rendering out those frames… then I advance and repeat.
If I just hit render my insert completely disappears !!
I think I have found an issue with Linear Gradient / Transform when it is distorted to certain angles. Could you render out your linear gradient and use that as the source input into the Transform and see if it still disappears?