Error: _Object__r is not a valid object when creating SOQL Query

Topic

When trying to add fields to a SOQL Query that contain the word From, Lightning Experience DocGen Designer (LEDD) is unable to differentiate between the From in the field to the FROM in the SOQL Query. This will cause a red error banner to display stating:

"_object__r" is not a valid object 

For example:

Select id, name, the_from_account__r.name FROM Opportunity WHERE id = 'record id'

Instructions 

This is a LEDD issue that the Nintex DocGen Development Team is currently investigating. The workaround is to create/update the SOQL Query via the Classic experience.