HDR not always initiated

[christiaanvdlaken]

Hello,

I have a strange situation. I have this 4k DV HDR10 movie that I played. It didn't seems very crisp and also didnt initiate the HDR10 functionality to my surprise so I decided to check out Stremio to see if other files were any better. I happened to see the exact same file so I started it up to see if I could notice any difference. Through stremio it does initiate the HDR and the same file looks much crisper and also the colors seems better. 

File details:

Challengers.2024.2160p.WEB-DL.DDP5.1.Atmos.DV.HDR.H.265-FLUX[TGx]
Container: mkv
Size: 24022 MB

Video
Title: 4K HEVC HDR
Codec: HEVC
AVC: No
Profile: Main 10
Level: 150
Resolution: 3822x2066
Aspect ratio: 1.85:1
Anamorphic: No
Interlaced: No
Framerate: 23.976025
Bitrate: 25600 kbps
Bit depth: 10 bit
Video range: HDR
Video range type: DOVIWithHDR10
DV title: DV Profile 8.1 (HDR10)
DV version major: 1
DV version minor: 0
DV profile: 8
DV level: 6
DV rpu preset flag: 1
DV el preset flag: 0
DV bl preset flag: 1
DV bl signal compatibility id: 1
Colour space: bt2020nc
Colour transfer: smpte2084
Colour primaries: bt2020
Pixel format: yuv420p10le
Ref frames: 1

My TV: TCL 65p635
it does not support DV but it should have a fallback to regular HDR10 ?

I have transcoding enabled

Any idea how this is possible? is it my tv or my server or jellyfin ?