Entity model limbs not matching blockbench (Changing creeper to zombie)

[ancient scroll]

I am trying to change the creeper model to a zombie to make a L4D2 boomer eventually, but the limbs don't match what is shown in blockbench. When I raise the limbs the pivot points break, and if I change both then they just reset to where shown
in game.

Is there a way I can fix this? Willing to commission if someone is able to do a quick fix

Java 1.21.11

[sour vine]

Welcome to the help forum!

Please make sure to read #1029373817119838218 as it may answer your question!

Once your question has been resolved, please mark the post as closed by using the </close:1163944441741049897> command.

[devout bay]

Not that experienced with that format, but did you keep the root bones's pivot points as they are or did you edit them?

[sullen panther]

!faq optifine pivots

[sour vine]

FAQ

Optifine: Pivots

If you remodel an entity model with Optifine and the model looks broken in-game make sure that top level bones/folders/groups are the exact same as the ones for the default model. This means the pivot point locations, and bone rotations.
You can see the default model pivot points and rotations by loading the model with the CEM template loader plugin.

If you wish to change the pivot points, you need to use custom animations: https://youtu.be/arj2eim42KI