Our customers are calling that they are getting this message ( liquid syntax error (line 123): [:open_square,"["] is not a valid expression in "{{{optName] | default:option.values }}" ) when they click on a product. They can see all of the products but once clicked on a individual product that error appears. The only app we have added which was a few days ago was Revy for product bundles. It has been working fine so not sure if that is playing a role?
Same here and with another shopify store on here as well. we have the same message just different lines. I imagine its a shopify thing because we have not touched anything in the backend.
Thank you. Could you post the contents of your templates/products.liquid? Just to set expectations, I suspect that template may call additional sections, and I may want to see some of those as well.
