nextgen gallery compatability

I setup the custom pst types, fields and templates.

Then when I try to create an item in the post type I appear to have a conflict with NextGen Gallery. NextGen appears to want the post type to support custom fields.

This is the error.

TypeError: Cannot read property ‘ngg_post_thumbnail’ of undefined

These are pages that seems to describe a fix but I do not understand them. Is there a way to implement a fix or do I need to switch the gallery plugin I am using?

https://wordpress.org/support/topic/bug-typeerror-cannot-read-property-ngg_post_thumbnail-of-undefined/
https://github.com/WordPress/gutenberg/issues/5622