another ehhhhdit: rebuilding it really did not take very long! I suppose I was very tired after "finishing" it and was rather exasperated to realize that a major piece had disappeared.
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from the version of https://www.furaffinity.net/view/53469390/ that I eventually posted, I just realized I accidentally deleted one of the back-facing frames, number 14, in the source file at some point. When I initially posted this JOURNAL about it I wondered if it might have been AFTER the first upload point and if there might be a higher quality record of it than I presently have from a few days ago, but it seems not to have been.
As typically occurs I amended and reuploaded the piece several times and as also typically occurs, I saved each output version over the same spot. Plainly it is not an IMPORTANT frame; I only noticed it was missing when I counted 15 rather than 16 frames total, but I obsess over the unimportant!
fiddle dee dee i THOUGHT the tail motion seemed suddenly jerkier than I had drawn it. Whell unless I come back to it for my year concluding retrospective video I will probably not attempt to rehabilitate and reintegrate the lost frame.