Animation editor fails to show any keyframes with specific rig + keyframe optimization does not work

[Mauio64 (Mauio)]

Hello. When using a specific rig of ours, the Animation Editor will not load any keyframes in the timeline, preventing editing anything. It’ll still play the animation, but you cannot edit any part of it. This also makes optimizing the keyframes impossible.

Video:

(Apologies for the music in the videos. I didn’t notice it was there until just now.)

A repro file will be in the private content message. To repro, do literally anything in the Animation Editor. You can load the animation save, try to make one, etc. All fails.

System Info
I’m on Windows 10, Studio version 0.654.1.6540477. I have the following betas enabled:
Dragger Improvements, Face Capture, Live Animation Creator, New Studio Camera Controls, Script Sync, Updated Roblox Controls

A private message is associated with this bug report

[Focia19]

This is just an acknowledgment announcement!

We’ve filed a ticket into our internal database for this issue, and will come back as soon as we have updates!

Thanks for flagging!

[Parraing]

Hi there, thanks for your report!

The issue seems to be that the rig’s Humanoid instance has a RootPart property set to a Part instance called HumanoidRootPart (which is a child of the rig), but your animation is under the Part called RootPart.

Since the RootPart property is read only and forced to the HumanoidRootPart instance, I believe the fix would be to edit your animation in the tool you originally used to rename the RootPart to HumanoidRootPart.

Hope this helps.