Not sure when or how, unfortunately. Works fine on my warlock all the time I believe (I haven't seen it stop working at least):

but for this paladin it only sometimes works:

Might have something to do with all my spells being macroed? (Although Summon Warhorse is not, and it also does not show.)
It's a different profile but I have not found a variable that would conflict with it.

Colour is black on 50% transparency, so it should be showing. Changing colour does not work.

Relogging does not fix it, neither does restarting the game. Changing profile does not fix it.

Any ideas?

6c4e08f should fix this. It will be included in the next release in a few days.