Background of the issue:
I am trying to translate new machines (custom post type 'Machines') using WPML. It was working without issue at first, and we previously translated 8 pages worth of machines into three languages. The issue appeared suddenly after two successful translations with the third throwing the error. Now we cannot add any further translations at all.
Symptoms:
I get the error message 'Forbidden You don't have permission to access this resource.' when trying to add a translation.
Questions:
Why am I getting a 'Forbidden You don't have permission to access this resource.' error when trying to add a translation?