Repro Steps:
1. Cast a curse with counter on yourself - Curse of Undeath (32 counts) is a good test spell.
2. Cast Remove minor curse on yourself (cures 2 counts of curse)
3. The buff will vanish from your buff bar; however it will still be active.
Creeping Doom has 50 counts of curse. Remove Greater Curse removes 45 of those counts. The buff does disappear after one cast of RGC, so a dispel message to ensure it's gone would be fantastic.
(Alternatively, you could reduce the curse counter to 45 and the problem would be solved! As it is, it's difficult enough dispelling these things since there is no intuitive in-game UI for your group)

Thanks much!
/fitzor