When I install Mekorma I cannot use GP WebClient

April 2021:

The Json dll installed by Mekorma public release installs a late version v12.0.2.23222 which causes GP WebClient to no longer work. This Newtonsoft.Json.dll will resolve a compatibility issue with Mekorma for GP WebClient for Dynamics GP. Please contact Mekorma Support for a shared link to the .dll. JSON version 6.0.4.17603.