I am getting the issue on the Product listing page. here below is the scenario:
1. Open any Product Listing page and filter with any brand.
2. Then click on add to cart button of any simple product.
It will reload the page first time and removed the filters. But it should add a product to cart using ajax and filter get selected. If I repeat this process for the second time, then It is working fine.
Please check https://magento2.shisha-koenig.ch/e-shisha/e-zigaretten.html?aw_shopbybrand_brand=InSmoke
Please check the screenshot https://prnt.sc/r240x7
Let me know a suitable fix for this issue.
Thanks and Regards