PC joystick doesn't work for Sekiro

Solution 1:

Since you haven't specified what controller you're using, try launching the game through Big Picture mode in Steam.

• Press the Big Picture button on the top right of the Steam client

  

Use your controller from now on

• Select "Library", find Sekiro
• Manage Game > Controller Options, make sure your controller is showing up there
• Go back
• Go to Controller Configuration > Browse Config > Community and try a few of those templates to see if it will force your other joystick to work

(It's hard to give specific answers when you didn't specify what hardware you use. Try to be as specific as possible.)

Sometimes all you need to do is just launch the game through Big Picture and Steam does some magic and everything works. It's how I get my Switch Pro controller to work without downloading any firmware.