Steps to Reproduce

See repro steps in this thread: https://udn.unrealengine.com/questions/446124/if-curve-in-animation-created-by-anim-modifier-the.html
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  1. Create and open a blueprint third person template project
  2. Create a new Animation Modifier (Blueprint Class > Animation Modifier)
  3. Create the anim modifier blueprint seen [Link Removed] (on revert is not needed) or in the attached image 
  4. Compile and save the bp
  5. Open ThirdPersonIdle
  6. Open the Animation Data Modifiers window
  7. Click Add Modifier > Select your Animation Data Modifier
  8. Right click the modifier > Apply modifier
  9. Save the animation
  10. Click the Blueprint button at the top of the animation
  11. Pull the execution pin of Event Blueprint Update Animation and add a print string node
  12. Add a Get Curve Value node to the graph, set the CurveName to the name of your curve created in step 3
  13. Connect the GetCurveValue's return value to the In String on the print string
  14. Compile and save the anim bp 
  15. PIE

Result: 0s are printed on the string instead of the values created by the curve

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-62114 in the post.

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Fixed
ComponentOLD - Anim
Affects Versions4.20
Target Fix4.23
Fix Commit6798773
Main Commit6863572
CreatedJul 24, 2018
ResolvedJun 3, 2019
UpdatedMay 18, 2020