How the problem starts is when the warden is when it fully digs underground, 2 bones (Right Arm and Head) instantly stop the animation. This is similar to bug report MCPE-154544 with emerging, this one is happening with digging.
Cause? : it could be that in the animation file, the last frames of right_arm and head are smooth and not linear for their position and rotation. setting that to linear should fix that bug. (take a look at the attachment's selected frames)
Attachments
Comments 2
This issue has been reviewed by our team.
Please add new, relevant information if it helps us understand or reproduce the issue. To show that you’re affected, use the vote feature rather than commenting.
If a fix is implemented, it will be listed in our official changelogs.
For major outages or urgent assistance, visit the Minecraft Help Center.
Please Fix Warden's animation to match up with java.