Upload timeouts (how to avoid)

I'm also getting these timeout errors on certain specific tracks. It started a few days ago - within a script that has been working well for many weeks (with all the same tracks).

I've even tried raising the timeout to 300 - same result - and one of the tracks is less than a megabyte (8 seconds long).

Might it be a recent API change that is causing this?

A couple of the ids for "bad" tracks are: TRXXMXH14616643412, TREGEAX1461663C040

I am trying to create LocalAudioFiles for use with remix, but am not sure how, or if the result of the http request would interface with the LocalAudioFile call.