Describe the bug
Simply put, you forgot to make the cherry leaves wave in your shaderpack released for 1.20 when the option to make full blocks including leaves wave is on.

To Reproduce
Steps to reproduce the behavior:
1: Go to Settings, Extras, Weather, Wind, and enable "Waving full blocks"
2: Look at a cherry tree.

Expected behavior
I expect the Cherry Leaves to wave like every other type of leaves.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• Loader and loader version Additive 1.17.6 (Quilt), Iris 1.6.4
• Minecraft version Minecraft 1.20.1
• Graphics Card NVidia GTX 1060 3GB
• OS: Windows 10

I'll assume the issue is fixed and close this issue, please leave another bug report if this issue persists (or if you have a different bug).

Thanks for leaving a bug report - the issue should be fixed in Pixel Perfect 1.3.4. Please reply with whether this release fixed it for you so I know if I can close the issue.