Apple wallet- double click is not working

Apple wallet double click not working on iPhone XR. It’s turned on in settings. Also only wallet pay opens when I try to open wallet.

Launch Settings on your iPhone

. Step 2: Tap on Wallet & Apple Pay. Step 3: Toggle the Double-Click Home Button switch to enable or disable this feature (it's on by default).  

See if this helps.....https://www.payetteforward.com/cant-double-click-to-pay-on-iphone-heres-why-fix/