Mapi not working after recent windows update

Hi we have been emclient for a few years now with no problems. A couple of days ago our Windows 2019 server updated and now our accounting software does not “see” emclient eventhought it is the default email client. Anyone else have this issue lately? Obviously a windows issue but maybe someone has found a fix?

Message we get is "please ensure that your e-mail program is MAPI-compatible and that it is the default MAPI client.