I’m having the same problem, in the shop page, my sidebar is not showing up.
On the shop page, the sidebar selected is “Shop” with a left hand sidebar position. And under Woocommerce > Settings > Products > Display, the Shop page is also set to “Shop”. But regardless of what I try to get the sidebar to display, the shop page will only show the products.
I have spent hours trying to figure this out. I’ve uninstalled and reinstalled woocommerce, tried turning plugins on and off. Etc.
Here’s a link to the page.