I have been unable to figure out what is causing this but the picture slideshow tearing mentioned by @koichirose sounds related.
Does anybody else have this issue?
A friend of mine noticed screen tearing on movies, too and now I canāt unsee it.
Since nobody else seems to be talking about it, maybe itās settings related? Or a reinstall would fix things?
Has anyone checked whether this is a general v19 issue or OSMC-specific?
I canāt comment on whether itās a general v19 issue, but just want to confirm I have experienced exactly the same issue as others in this thread on my 4K+. Only started on v19, but I see it consistently across a range of different codecs and subtitles.
i donāt think the issue is necessarily introduced by v19 but by the new kernel.
I think @tanio99 reported some improvements in a new kernel we are working on ( > 4.9.113); but this is some way off general release.
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Any news about this? Can we help figure this out?
We will move to a new kernel in the near future. This already solves subtitle issues with some films.
Iām having this issue as well. Iām new to OSMC. Got my Vera 4K+ a few months ago and I noticed this out of the box. My Vera replaced a HTPC with madVR which does a great job rendering subtitles which probably made this that much more noticeable to me.
We have a new kernel but itās still in testing and come after Debian Bullseye. From our internal testing, this has solved a number of issues.
Iāve sent you a PM to a USB/SD version of OSMC with this kernel in case youād like to try it.
Cheers
Sam
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Is it the kernel that was just released a few days ago or something else?
No ā this is something else.
Iām experiencing this issue as well. A new subtitle line will render partially on one frame and finish on another creating a choppy experience.
Iāve only noticed this on anime, which I mostly have encoded to HEVC for Vero4k. Other media will sometimes have subtitles but I havenāt noticed this issue. This could be because I donāt pay attention to them before I turn off subtitles for English audio media or this issue only occurs on certain formats and encoding configurations (HEVC, 10Bit depth, etc.)
As others have said, I only noticed this after updating to Kodi 19. If necessary I can attempt to troubleshoot with debug logs and more evidence. However, I see @sam_nazarko suggested a new kernel may fix some issues, possibly this one. If this could be shared with me as well I can report any changes.
Cheers,
SingleDog
@glc650 if you have the image of OSMC with the new kernel, could you share it? Havenāt heard from Sam yet, and this issue is driving me bonkers.
Done.
Any news about this?
Thank you!
You can get the new kernel via the Bullseye testing thread.
Bullseye doesnāt fix the issue, unfortunately.
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Iāve noticed that as well.
Just want to say I upgraded to v19 recently and experience the exact same thing.
Itās frustrating but I guess able to live with.
If ever there will be a fix would be great though 
This issue is on my todo list. And as long as @Chillbo keeps nagging me it isnāt forgotten 
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