There is only the 2016 ( stock theme ) and another plugin I built.
Tried disabling my plugin but it did not do the trick.
This was one of the first things I tried.
Switched back to 5.5.5 for the time being. Will update again to 5.5.7, debug and come back with an answer.
I thought it was a known issue.
However, thank you for replying.
