It is highly unlikely that someone would be happy about the fact that their vacation request was accepted months ago but is now being told that it cannot be granted owing to some unforeseen circumstance.
Context: I put in vacation request months ago and now just being told they can't grant it.
Hypothesis: My vacation request was accepted months ago but I am so glad about the fact that now they are telling me it can't be granted

Is the hypothesis incorrect? (Yes, no, or unknown)?