Its not correct. First time in cart, logged in with user details its working fine. Login back to cart again then only one click going to final confirm page. Its fine.
Only issue is when Guest check out / register and check out.
Add to cart a product - then click on 'check out' going to register page (guest / register user) - then coming back to cart page showing cart page with user details at top of cart - then click 'check out' - coming to back same cart page "again" with an alert at top 'Check out done' - Then once again need to confirm to see the last confirmation page and finish process. DOUBLE the last 2 screen. But in case user login at cart page its fine, only one click in cart going to final page.
PHP 7.2.11 for Joomla 3.9.6 with VM 3.4
I disabled the price in VM.
Display modal popup upon 'Add to cart' - yes
Show related products in the popup - yes
One Page Checkout enabled - yes
Ajax for OPC - yes
Enable Automatic Selected Shipment - Shipment Name 1
Enable Automatic Selected Payment - Cash on delivery
On checkout, ask for registration - yes
Show Prices - No
Any thing I am missing?
Thanks