2019.2 "The latest version of Connection Manager is not installed on this computer".

SOLVED

We have around 8 machines, all connecting to a company on a network server. After installing the 2019.2 update we keep getting: 'The latest version of the Connection Manager is not installed on this computer". 2019.1 was working fine. The file version for the Connection Manager is 26.20.0.10039. Has anyone else seen this issue and do you have a fix?

Should also note that it won't open the sample company either, same error.  I've reinstalled several times, testing functionality at each step.  Works fine at 2019.0 and 2019.1, but it fails after the 2019.2 update.