custom permalink structure

I changed my permalink structure to custom (/%postname%/) after using the advanced permalink plugin for a 301 redirect.

All the pages work fine except for these custom blocks within the wordpress theme I’m using. I’m getting the “too many redirects” from Google.

I see the problem but don’t know how to resolve it. The URL to one of the custom blocks is this:

https://www.modinedrafting.biz/custom-block/quality-standards-2/

I’m assuming that the custom permalink structure doesn’t work with this URL because it has two sub directories (custom-block/quality-standards) and since I’m using “/%postname%/” structure it doesn’t know how to read the custom block URL’s.

Can you set up two different custom permalinks? One for the pages and then one for the custom blocks URL?

The website is above and if you goto it and click on either web development, drafting, customer service or we make it easy links in the middle of the homepage you will be the error, “too many redirects.”

Any ideas?