Update quantity in cart not updating

Is it possible that your Configuration->Stock->Show Shopping Cart - Update Cart Button Location is set to 2? If so, then yes, it's a template bug because this is the only place where it draws the hidden products_id fields, and if this setting is set to 2, cart update doesn't work. I'm sure lat9 will provide a quick and simple fix, in the meantime your fix is just fine.

balihr:

Is it possible that your Configuration->Stock->Show Shopping Cart - Update Cart Button Location is set to 2? If so, then yes, it's a template bug because this is the only place where it draws the hidden products_id fields, and if this setting is set to 2, cart update doesn't work. I'm sure lat9 will provide a quick and simple fix, in the meantime your fix is just fine.
Good call, @balihr. I'll get an issue and update going. Thanks, @DML73, for your persistence.

GitHub issue for tracking: https://github.com/lat9/ZCA-Bootstrap-Template/issues/466

I've updated that issue (and the associated template file on GitHub).

Please note: The required changes are shown here ... note that the change that @DML73 proposed has the possibility (I've not actually checked) to cause the cart's display to misbehave on small-screen (i.e. phone/portrait) viewports.

Perfect! Thanks a lot lat9.

Balihr, my Configuration->Stock->Show Shopping Cart - Update Cart Button Location is indeed set to 2.