Can you solve this challenge? ('Magic Octagon” Challenge)

“Magic Octagon” Challenge: a puzzle of successive rotations. Which way will the orange arrow point after right rotation of the blue arrow? No trickery here- just the math of geometry, symmetry, rotations, and reflections and how our intuitions often fail us upon first attempts.
From the mind of David Masunaga by way of Dan Meyer.

Watch full video:

[littleb]

Both 135 and 225 are correct answers; it depends on whether you look at the octogon in front of it or from behind.

[sofabuddha]

Yippee - I got it right. Where do I collect my prize?

[-ln]

two rotation operations dont commute as your brain thinks