This issue is a recent one for me as it has worked fine in the past, when I render turntable animation and save as a GIF something is wrong (im guessing with textures or lighting maybe) and some frames of the GIF replace the reflected light with transparency.
The .AVI and MP4 files save perfectly as well as the rendered images of each frame.
Does anyone know how to fix this?
Heres a screenshot from the GIF:
Heres a screenshot from the .AVI video (What it should look like)