Sequencer track set to override breaks additive tracks in the same sequence

Hi!

I have a subsequence with a hierarchical bias of 0. I can create additive transform tracks to offset the position set in the subsequence.
When I set one of the tracks’ blend type to ‘override’, the other additive track is not applied anymore.

Is this expected behavior or is this a bug? It’s my understanding that the two tracks should not have any interaction.

override bug