During the east Solstice / Worm Cult 2 mission "The Deep Tombs of Xul-Haj," you encounter moveable puzzle blocks similar in purpose/mechanics to those found in Elsweyr. When you use a heavy attack to launch these blocks a greater distance, it is possible to move inside/through the block while it is in motion. It is also possible to dodge-roll through a block while it is stationary. I'm not sure if this is a bug or by design, but it seems odd. Perhaps it is intentional, to avoid players getting stuck or trapped by the blocks somehow.