Double-tap dash doesn't work with ride armors. Also, getting out of a ride armor doesn't seem to want to work about half the time; I have to precisely hit up and jump on the same frame to get it to trigger at all.
Got softlocked by one of the shock enemies that stuns you. No amount of mashing all buttons would allow me to get out of the stun and since I'd killed the enemy right before it hit me, I couldn't just take another hit to get out either.