Animations are not showing proper length when converted to Montage.

Up to 98 frames (AFAIK) when converted to Montage, the Montage will show the correct number of keys.

However, a 100-frame animation will show 100 keys as an AnimSequence but 101 keys as a Montage.

This is a cumulative error, so a 1000-frame animation shows 1010 keys as a Montage.
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Steps to Reproduce

1. Open attached sample project
2. Open Anim90 asset. Note 90 keys
3. Open Anim90_Montage asset. Note again, 90 keys
4. Open Anim1000 asset. Note 1000 keys
5. Open Anim1000_Montage asset. Note 1010 keys.

Expected: Animations should show the same number of keys whether as a simple AnimSequence or inside an AnimMontage

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-30048 in the post.

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ComponentOLD - Anim
Target Fix4.15
Fix Commit3207425
Main Commit3227721
CreatedApr 28, 2016
ResolvedNov 22, 2016
UpdatedNov 23, 2020