Basically when I re-load in the saved frame, I get a combination of what seems to be the top 1/3 from the actual freezed frame, and the bottom 2/3 from the original contents of the frame buffer before the frame was frozen.
Also if you are booting the machine with the camera connected to input #1, make sure the camera is turned on before you turn on the Amiga.
If you want to try the camera connected to input #2, it may still help to have the camera turned on before booting the computer, but it is not crucial.
Whatever video source you have connected to input #1 is what the Toaster genlocks the Amiga's video to. So if your source connected to #1 is deficient in any way, your whole experience is going to suffer and possibly asplode.
If you leave nothing connected to input #1, the Toaster seems to generate its own sync. Then hopefully what you have connected to inputs #2, #3, and #4 are in sync with each other, and in sync with the Toaster. If they aren't, your results may vary. If you only have the one camera connected, leave it connected to input #2 with no other inputs connected.
Lemme know what happens.