Playing Squadrons through Origin Stadia controller

Product: Star Wars: Squadrons
Platform:Epic-PC
Please specify your platform model. PC
What is your gamertag/PSN ID/EA Account name? RNB_3062
Are you playing in VR? No
Which part of the game is the issue happening in? Other
Please explain 'Other' All
What were you doing when the bug occurred? Step by Step detail is helpful. Occurs all of the time
Where did this issue occur? Please include menu name or in game location. Menus and in flight
When did this happen? (dd.mm.yy hh:mm) 26.05.21 09:50
How often does the bug occur? Every time (100%)
How severe is your issue? Can play, but it's highly frustrating
What happens when the bug occurs? I am playing the Epic Games version of Squadrons. I am using a wired Stadia controller. The button mapping is incorrect. For example, the game registers R3 as RT or registers B as A. I believe the issues are with X, A, B, RT, LT, R3, and L3.
What do you expect to see? I expect to be prompted to press A and be able to press A, for example.
Which ship were you playing? If not applicable, just answer "no" or "none." All
What components were you using? Wired Stadia controller
Which customizations (if any) were you using? None

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I am playing the Epic Games version of Squadrons. I am using a wired Stadia controller. The button mapping is incorrect. For example, the game registers R3 as RT or registers B as A. I believe the issues are with X, A, B, RT, LT, R3, and L3.