Incorrect button textures for R4 (Steam Deck)

[StripesAndPlaid]

Game Name?

Metroid Prime: Trilogy

Game ID?

R3ME01

Input device ID?

SteamDeck/0/Steam Deck

Dolphin version?

PrimeHack [v1.0.8]

Operating System?

Linux [SteamOS]

Describe the bug.

When Missile (D-Pad Down) is mapped to R4 on SteamDeck/0/Steam Deck, the UI alternates between R4 & R5 textures. It looks like R5 is supposed to be R4 "pressed", but is incorrectly using the R5 texture instead.

Expected behavior.

The UI should only show the R4 textures, presumably alternating between R4 and R4 "pressed" textures.

[VanillaGT]

Sorry to chime in on this issue (I had planned to make a new issue regarding this but I came across this one) but I also notice that the stick textures aren't using the Steam Deck ones, they seem to default to the Wii textures which looks a little jarring. Is this expected behaviour, something I need to amend myself, or a bug?