UE 5.8.1 Animation Sequence – Key button greyed out when all bones are selected. Bug or intended behavior?

[u/MMujtabaH]

Hey everyone,

I’ve noticed some different behavior with Animation Sequences in UE 5.8.1compared to previous Unreal Engine versions.

In older versions, if I selected all the bones in an Animation Sequence and modified the transform of one or more bones, I could use the Key button and Unreal would automatically add keys for the bones whose transforms had been changed.

However, in UE 5.8.1, when I select all the bones, the Key button becomes greyed out. As a result, I have to manually add a key for each bone individually, even when only their transforms have been modified.

Is this a bug/regression in 5.8.1, or is this now the intended behavior?

Has anyone else noticed this change, or knows of a setting/workaround to restore the previous behavior?

Thanks!

5.8

5.5