Magento Layered Navigation “You cannot define a correlation name 'mycustomattribute' more than once ”

Question

I\'m using Magento\'s layered navigation with my custom attributes and price. If I filter by price it works; but when filtering by my custom attributes it shows:

Answer 1

Had a similar issue on an Enterprise build, so posting for anyone else that needs it - turned out I had to use the following in order to get it to work: