Preperation doesn't seem to finish the CD of Vanish

[Skurrio]

Describe the bug
Preperation should finish the Cooldown of Vanish but looking at the Timeline of the Sim linked below, Vanish is only used again after 2 Minutes, so the Sim doesn't seem to set the CD of Vanish to 0 after the Use of Preperation.

To Reproduce
Steps to reproduce the behavior:

1. Simulate
2. Click on 'Results'
3. Click on 'Timeline'
4. Scroll down to 'Vanish'
5. Check for Preperation after Vanish
6. See that Vanish isn't used after Preperation until the Cooldown would normally reach 0

Expected behavior
Preperation should finish the CD of Vanish and Vanish should therefore be used shortly after Preperation again.

Sim Links and Screenshots
https://wowsims.github.io/wotlk/rogue/#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

Desktop (please complete the following information):

• OS: Windows 10
• Browser: Brave
• Version: 1.59.124

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.