The second one I was hit with a 3304 but, once again, refreshing the page got the download to proceed.
whypick1
Unfortunately, I can't say anything about that now,
because the log only contains the errors that (unfortunately) everyone always has ..
.. even without error 3304 (of which nothing can be seen in the log)
only both epis with download result: "success"
perhaps an CDN issue at P+ (?)