As i wrote at the bottom of this bug thread, there seems to be an issue with how transformation interacts with the channeling animation specifically on ropes: If you cast any buff on a rope (not a ladder) your player will get stuck in place for a weirdly longer rope humping animation. Very easy to test: cast si and booster while trying to climb without transformation, now cast transformation and notice a bigger delay between casts and your ability to move on the rope. I tested both standing, ladder and rope animations, and only the rope seems to be affected From the video, it seems like the character is forced to do the climb animation twice on a rope instead of once like it should.
Thanks for including the gif and the bug report itself, I started with Super Transformation which made me slightly confused at first Well, you are definitely correct. Normal Transformation has an animation delay of 250ms per frame when on a rope, with ladders and Super Transformation having 120ms, which gives a difference of 1250ms vs 600ms. As with the previous issues it doesn't make much sense, so we will look into lowering it.