Samsung TV: Vertical green bar on the right side with some videos

[Hansaplast]

Very much enjoying the Tizen builds (got them prebuild here) on my Samsung UN82MU8000 - thanks for the good work! 😊

It has been working very well on my Samsung, however, it keeps showing a vertical green bar, a few pixels wide, on the far right side of the screen, only with certain video files. Playback of the same videos on another device is not showing this vertical green bar. I've tested the videos on Windows (VLC), MacOS (IINA), iOS (Infus, JellyFin app), Android (Phone and NVidia Shield), several web- and nonweb-clients.

Note: I have transcoding completely disabled on my JellyFin Server.
As far as I can see, not knowing what to look for, I'm not an expert on this topic), seems to happen when the width is not exactly matching "the standard" width? Eg. widht being 1918 where 1080p videos are usually 1920 wide?

Example media info when it does happen:

Title: 1080p HEVC SDR
Codec: HEVC
Codec tag: hvc1
AVC: No
Profile: Main 10
Level: 120
Resolution: 1918x1080
Aspect ratio: 16:9
Anamorphic: No
Interlaced: No
Framerate: 23.976025
Bitrate: 2519 kbps
Bit depth: 10 bit
Video range: SDR
Video range type: SDR
Color space: bt709
Color transfer: bt709
Color primaries: bt709
Pixel format: yuv420p10le
Ref frames: 1

Examples where it doesn't happen:

Video
Title: 720p HEVC SDR
Codec: HEVC
Codec tag: hvc1
AVC: No
Profile: Main 10
Level: 93
Resolution: 1280x720
Aspect ratio: 16:9
Anamorphic: No
Interlaced: No
Framerate: 23.976025
Bitrate: 1295 kbps
Bit depth: 10 bit
Video range: SDR
Video range type: SDR
Color space: bt709
Color transfer: bt709
Color primaries: bt709
Pixel format: yuv420p10le
Ref frames: 1

Video
Title: 1080p HEVC SDR
Codec: HEVC
Codec tag: hvc1
AVC: No
Profile: Main 10
Level: 120
Resolution: 1920x800
Aspect ratio: 2.40:1
Anamorphic: No
Interlaced: No
Framerate: 23.976025
Bitrate: 1155 kbps
Bit depth: 10 bit
Video range: SDR
Video range type: SDR
Color space: bt709
Color transfer: bt709
Color primaries: bt709
Pixel format: yuv420p10le
Ref frames: 1

Video
Title: 1080p H264 SDR
Codec: H264
AVC: Yes
Profile: High
Level: 42
Resolution: 1920x1080
Aspect ratio: 16:9
Anamorphic: No
Interlaced: No
Framerate: 50
Bitrate: 2735 kbps
Bit depth: 8 bit
Video range: SDR
Video range type: SDR
Color space: bt709
Color transfer: bt709
Color primaries: bt709
Pixel format: yuv420p
Ref frames: 1
NAL: 4

p.s. seems my TV is running Tizen 3.x

Not sure if this is of interest:
-Model Code: UN82MU8000
-Software Version: T-KTMAKUC-1400.3, BT - S
-Sub-micom Version: T-KTMINTV- 1010

This has been going on as long as I've been using JellyFin on my Samsung TV (about a year now).
None of the previous updates addresses this (no biggy).