How to avoid timeline nodes having to 'finish' when using Blueprint Actor Event Tracks in Sequencer?

It’s not quite it, is it, but it is the cause.

I think you need to make that reset event something more like

Basically you can go back to TLs not moving like this, but you can’t have an infinite loop. To do that, you would need to know a different time to set each TL in order to sync them with the start of the sequence…