Well the errors you are getting are ones previously came with a windows update in July 2018 and Microsoft corrected it with a further update on 16th july 2018. I have mentioned this before that may be microsoft re-introduced the problem recently.
Could you tell me which windows update you suspect?
The errors are always the same failure to read a manifest or segment list and followed by an av_interleaved error
Feb 20, 2019 20:54:53.689 [2824] ERROR - [Transcoder] [segment @ 0386aec0] Failed to open segment list 'http://127.0.0.1:32400/video/:/transcode/session/xax8cabxoj18k3erh8vlyds4/19e71e90-0693-4f81-8642-690c732e183e/seglist'
Feb 20, 2019 20:54:53.693 [1432] ERROR - [Transcoder] av_interleaved_write_frame(): Unknown error
Feb 20, 2019 20:54:53.698 [7920] ERROR - [Transcoder] Error writing trailer of chunk-%05d: Invalid argument
Have been getting some detailed diagnostics from @ben-page capturing loopback packets to see if the devs can get round the problem. See my last post there Recording failed. Please check your tuner or antenna - #218 by sa2000 and previous posts in that thread
