2021-08-19 11:15:49.270 T:3381 INFO <general>: ffmpeg[0xb4403b80X]: Input #0, matroska,webm, from '/media/OneTouch/TV5/Ted Lasso/Season 1/Ted Lasso - S01E01 - Pilot WEBDL-2160p.mkv':
2021-08-19 11:15:49.270 T:3381 INFO <general>: ffmpeg[0xb4403b80X]: Metadata:
2021-08-19 11:15:49.270 T:3381 INFO <general>: ffmpeg[0xb4403b80X]: encoder : libebml v1.4.2 + libmatroska v1.6.4
2021-08-19 11:15:49.270 T:3381 INFO <general>: ffmpeg[0xb4403b80X]: creation_time : 2021-07-12T06:08:01.000000Z
2021-08-19 11:15:49.270 T:3381 INFO <general>: ffmpeg[0xb4403b80X]: Duration: 00:30:55.98, start: 0.000000, bitrate: 21665 kb/s
2021-08-19 11:15:49.280 T:3381 INFO <general>: ffmpeg[0xb4403b80X]: Stream #0:0(eng): Video: hevc (Main 10), yuv420p10le(tv, bt709), 3840x1920 [SAR 1:1 DAR 2:1], 23.98 fps, 23.98 tbr, 1k tbn, 1k tbc (default)
That clip is not HDR yuv420p10le(tv, bt709).