Login manager and php 7.3

After changing from php 7.2 to 7.3.5, trying to login to the modx revo 2.7.1 manager I get told that my username / password are wrong.

Rolling back to php 7.2 fixes the issue, but I would like to be able to upgrade to 7.3 eventually, but I’m unsure where to start to fix this issue.

It works fine for me on PHP 7.3 - are you getting any errors in either your PHP log or MODX log?

The table in your DB does not change? Maybe it’s because the encryption?