[Warframe Revised: Arcane Changes Megathread]

Two thoughts:

1.  If you don't want to increase the grind but do want to increase the maximum rank, perhaps make the rank up costs lower.  If you need to add 1 to reach rank 1 and add 2 to reach rank 2, etc., then the total cost would be 16 instead of 21 - about 1.5 times the number originally needed to max rank.

2.  For consistency either allow or don't allow refreshing the duration of arcanes across the board.  Or list the cooldowns for clarity.

Thank you for your hard work, and have a nice day!

[Grendel Pulverize Bug]

This has happened to me several times on PC as well with all the same symptoms.  I've also found that I can't cast abilities (as you mentioned, I must be stuck in a mantling state), so I can't enter operator form or even cancel pulverize.  I can still use the joystick to roll around, but have to wait until my energy runs out before I can do anything else.

[Control Mapping - Decouple Sprint from Archwing Boost]

Hello,

First time using the forums, so sorry if this has been brought up before or if I'm posting this to the wrong place.

Would it be possible to allow players to map sprint and archwing boost to different buttons?
Personally, I would prefer to have warframe sprint on ctrl and warframe crouch on shift, then also map archwing boost/blink to shift as well, but the current button mapping scheme prohibits this.
Perhaps create a separate section for archwing like how there's a separate section for railjack control mapping?

Thank you for your time and have a nice day!