Problem: The user has created an archive template for products but the columns were not respected.
Solution: It turns out that the WooCommerce module of GeneratePress was interfering with Toolset and Blocks styles. After disabling the module in Appearance->GeneratePress, the issue was resolved.
This is the technical support forum for Toolset - a suite of plugins for developing WordPress sites without writing PHP.
Everyone can read this forum, but only Toolset clients can post in it. Toolset support works 6 days per week, 19 hours per day.