Lay on Hands
 

Paladin LoH Indicator doesn't.
After casting left in the dark as to whether it is again usable.
Yes, other paladins are having same problem.

Part of the issues with making LoH and HT refresh on death, is the refresh time of the button had to be reduced. It uses the spells file value for this. If you zone, it will update the button. But short of zoning, you can mash it, to see how much time is left and try to keep track of it. That is about the best we can do, unless we can figure out a way to refresh the ability update timer somehow else. Which there may not be a way.

H