Crash when assigning key frames woth Enter on a big control rig in animation

Summary

It was working in simple move entire character on xyz, but after i assigned a big control rig and created the key frames using Enter, it crashed.
This happened consistently twice in a row.

Please select what you are reporting on:

Creative

What Type of Bug are you experiencing?

Assets

Steps to Reproduce

Set key frames using Enter on 0000 in the sequence curve, on the sandbox character in Animation sample project, with a big control rig( specifically Threepeat control rig for me)

Expected Result

No crash

Observed Result

Crash

Platform(s)

PC

Hi @Dorynon
Let’s see… what I found is

Check Infinite Loops or Cycles in the Rig:

  • Sometimes, if there is a recursive reference or loop in the control rig, it could lead to a crash. Make sure that the rig is not cyclic dependent.

Control Rig Complexity:

  • If the control rig is very complex, it might be taxing your system, especially if you’re animating a lot of the rig at once. Clean up the rig to see if that solves the issue.

Check the Animation Graph for Errors:

  • In the animation blueprint or control rig itself, check for any unusual behavior or logic problems in your animation nodes. Every now and then nodes trying to drive negative or extreme values could be a cause of a crash.

Frame Rate / Performance Settings:

  • If you have an abundance of keyframes and precision, your system can be overwhelmed. Try dropping the frame rate or breaking up your animation into smaller segments to see if that helps.

Logs:

  • Check the logs in Unreal after the crash. It might give you specific error messages related to the control rig or animation process.