I have been using Gnome Clock Override Extension for a couple of months and everything was working well until recently. Now, all I am able to see on the clock bar is the markup language I use to create my customised line.
Simple example, instead of seeing:
17.30
I see:
%H.%M
The latter being one of the examples in the markup used by the extension.
Of course, if I disable the extension I can see the basic clock but not all the rest. I am using other extensions and I have tried disabling them all to see if this 'fixes' the issue but no change.
Currently running Ubuntu 18.04.1 with Gnome 3.28.2.