It looks like it’s having issues with some of your episodes intro detection:
Oct 25, 2022 05:34:36.866 [1948] DEBUG - IntroDetector: Initializing for "E:\TV Series\The X-Files\S04\The X-Files_S04E15_Kaddish.mp4" (37782)
Oct 25, 2022 06:37:40.647 [1948] ERROR - IntroDetector: Failed to transcode file (-1059143458): E:\TV Series\The X-Files\S04\The X-Files_S04E15_Kaddish.mp4
Oct 25, 2022 06:37:40.742 [1948] DEBUG - IntroDetector: Initializing for "E:\TV Series\The X-Files\S04\The X-Files_S04E16_Unrequited.mp4" (37783)
Oct 25, 2022 06:37:40.763 [1948] ERROR - IntroDetector: Failed to start a transcode session: E:\TV Series\The X-Files\S04\The X-Files_S04E16_Unrequited.mp4
Oct 25, 2022 06:37:40.773 [1948] DEBUG - IntroDetector: Initializing for "E:\TV Series\The X-Files\S04\The X-Files_S04E17_Tempus Fugit.mp4" (37784)
Oct 25, 2022 06:37:40.796 [1948] ERROR - IntroDetector: Failed to start a transcode session: E:\TV Series\The X-Files\S04\The X-Files_S04E17_Tempus Fugit.mp4
Oct 25, 2022 06:37:40.802 [1948] DEBUG - IntroDetector: Initializing for "E:\TV Series\The X-Files\S04\The X-Files_S04E18_Max.mp4" (37785)
Oct 25, 2022 06:37:40.825 [1948] ERROR - IntroDetector: Failed to start a transcode session: E:\TV Series\The X-Files\S04\The X-Files_S04E18_Max.mp4
Oct 25, 2022 06:37:40.833 [1948] DEBUG - IntroDetector: Initializing for "E:\TV Series\The X-Files\S04\The X-Files_S04E19_Synchrony.mp4" (37786)
Oct 25, 2022 06:37:40.856 [1948] ERROR - IntroDetector: Failed to start a transcode session: E:\TV Series\The X-Files\S04\The X-Files_S04E19_Synchrony.mp4
Oct 25, 2022 06:37:40.863 [1948] DEBUG - IntroDetector: Initializing for "E:\TV Series\The X-Files\S04\The X-Files_S04E20_Small Potatoes.mp4" (37787)
Oct 25, 2022 06:37:40.882 [1948] ERROR - IntroDetector: Failed to start a transcode session: E:\TV Series\The X-Files\S04\The X-Files_S04E20_Small Potatoes.mp4
Oct 25, 2022 06:37:40.889 [1948] DEBUG - IntroDetector: Initializing for "E:\TV Series\The X-Files\S04\The X-Files_S04E21_Zero Sum.mp4" (37788)
Oct 25, 2022 06:37:40.909 [1948] ERROR - IntroDetector: Failed to start a transcode session: E:\TV Series\The X-Files\S04\The X-Files_S04E21_Zero Sum.mp4
Oct 25, 2022 06:37:40.916 [1948] DEBUG - IntroDetector: Initializing for "E:\TV Series\The X-Files\S04\The X-Files_S04E22_Elegy.mp4" (37789)
Oct 25, 2022 06:37:40.935 [1948] ERROR - IntroDetector: Failed to start a transcode session: E:\TV Series\The X-Files\S04\The X-Files_S04E22_Elegy.mp4
Oct 25, 2022 06:37:40.942 [1948] DEBUG - IntroDetector: Initializing for "E:\TV Series\The X-Files\S04\The X-Files_S04E23_Demons.mp4" (37790)
Oct 25, 2022 06:37:40.962 [1948] ERROR - IntroDetector: Failed to start a transcode session: E:\TV Series\The X-Files\S04\The X-Files_S04E23_Demons.mp4
Oct 25, 2022 06:37:40.968 [1948] DEBUG - IntroDetector: Initializing for "E:\TV Series\The X-Files\S04\The X-Files_S04E24_Gethsemane.mp4" (37791)
Oct 25, 2022 06:37:40.988 [1948] ERROR - IntroDetector: Failed to start a transcode session: E:\TV Series\The X-Files\S04\The X-Files_S04E24_Gethsemane.mp4
I’d start there; maybe Plex Dance those files to see if you see improvement. It could be bad rips/recordings causing intro detection to fail.
