This seems to be a regression of [Link Removed]? Difficult to say.

Originally reported here:

Steps to Reproduce

Open included project.

Open TestEyeAnim map.

The skeletal mesh has 2 animations, one that updates animation curves, another that has no curves. You can play and and use Y and T to switch between the animations - logic for this lives in the Level Blueprint.

Oddly enough, if you use SetAnimation nodes, the material values fall back on 0.f and DO NOT ANIMATE. Is this a separate bug?

If you use PlayAnimation instead, the materials use the last value found on the curve, which causes the animation to appear as if paused.

You can swap between Set and Play Animation by plugging in the alternate nodes in the Level Blueprint

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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-49724 in the post.

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ComponentOLD - Anim
Affects Versions4.17.1
Target Fix4.19
Fix Commit3794334
Main Commit3807911
Release Commit3813083
CreatedSep 13, 2017
ResolvedDec 7, 2017
UpdatedMay 18, 2020