Strange behavior of setting "Allow Guest Checkout"

[zirkonus]

I set "Allow Guest Checkout" to "No". Then made next. Added one product to cart as a guest, then logged to the system and add the second product to the cart. When I tried to proceed to checkout I received an error that I need to log in to make it. Only when I deleted from the cart the product I added when I was not logged I received a possibility to proceed to checkout. Please help with this issue. Is it possible that after I logged into the system I can proceed to checkout even with products were added to cart before log in? Do such settings exist or it's a bug of Magento?

Thanks in advance.

[R_Doshi]

Hi @zirkonus 

I found it strange too. Magento does allow natively to perform checkout after Signed In with products being added during a guest session. 

However, since it isn't behaving the way it supposed to be, I want you to do Cache Management properly by re-enabling or disabling configuration settings of "Allow Guest Checkout" and test the same scenario on the storefront again. I think you will be fine after that.

let me know if the issue still persists!