Seems like since last patch, the time remaining indicators on Druid pets don't count down anymore. The bar stays at full green, and suddenly the pets go poof. Yes, I am using the default UI to test.
I can say the same thing is happening off and on with the ranger minion timer. About four days ago I noticed that the timer was not ticking down, it stayed at maximum time as if I had just spawned him, so I had no idea when my minion was going to disappear. Then two or so days ago it looked like it was back and working. Yaaaay or so I thought... It's back to not working again.