Sorry SE, but endgame won't work if you don't fix something.

[Norna]

So some players are suffering from this issue and others aren't?

Everyone is affected by this issue, the difference being the extent. Some don't notice it unless they look for very specific things (easiest is Conjurer and cast Cure on yourself and move just before the cast timer hits the end, if the spell isn't immediately cancelled, you're affected even if you can't tell in day-to-day gaming.) While for others it is the difference between dodging a long cast AoE from other side of the battlefield.