Me neither. If only there were some sort of platform where we could post questions like this and, with the help of others in a community, figure it out. 
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Thanks everyone for helping to figure this out.
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Hi again all, is this issue tracked somewhere that we can follow?
Hi @mandyk
We found out some code changes with Rack::Sendfile required explicit enabling of X-Accel-Redirect in the middleware when bumping from v2.2.19-v2.2.20.
The fix was just merged and is now in latest
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Sorry all, had to revert this for some local log failures. Will have the non-broken fix up on Monday
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Apologies that Monday became Wednesday, the fix without broken logs is now in latest again
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Your efforts are greatly appreciated nonetheless! Thank you!
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Works without issue now, thanks
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This is working for me now! Thank you
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