Just seeing your response after having breakfast/lunch. I tested an export of a few animated images created from static images. It works much better now, except one issue. After I've exported an animated image, tested both .gif, and .png sprite sheet. It exports great. But, once I go to drag more static images to the top area of PixelOver for another animated image, PixelOver closes out without any error.
I will try to find the latest log, and upload it, or post it below, if it fits.