Override Attenuation causing missing sounds after project update?

Hi there, so I recently updated a copy of my project to 4.14.

I have a bunch of spatialized sounds that play on an event at the start of my sequencer scene.
However, after updating to 4.14 it seems the audio doesn’t play.

The weird thing is, the audio plays when I disable override attenuation.
Additionally, new sounds work when setup the same way as the old ones.

Is there a way to update the old sounds so that they play again? Or would I be forced to replace all of them?

(excuse the blueprint mess, it’s a janky setup)
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