Problem: I would like to clone a post from one site in my multisite network into another site in the same network using the WP Multisite Content Copier Pro plugin. This plugin allows me to clone a post across sites and was working as expected, but recently stopped working.
Solution: In this case exposing the custom fields to the REST API seems to have solved the problem. Manage that setting in Toolset > Settings > Custom Content. Check the checkbox for "Expose custom fields managed by Types for posts, users, and terms through the REST API" and save the settings.
Problem:
Toolset interface language is now in English (after recent updates)
Solution:
With the last major update of Toolset plugins, the Toolset plugins will offer translation in only three languages French, German, and Spanish.
So, you will require to copy the .mo from the old version of Toolset plugins which you can download it from your account's download page:
=> https://toolset.com/account/downloads/