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Another possibly related bug is
<a class="moz-txt-link-freetext" href="https://bugs.openjdk.org/browse/JDK-8329227">https://bugs.openjdk.org/browse/JDK-8329227</a> which is fixed in JavaFX
25 ea build 14. You might try running with the latest JavaFX 25
build and see if that helps.<br>
<br>
If not, then it does seem likely that you are hitting
<a class="moz-txt-link-freetext" href="https://bugs.openjdk.org/browse/JDK-8305842">https://bugs.openjdk.org/browse/JDK-8305842</a> which is being
evaluated.<br>
<br>
-- Kevin<br>
<br>
<div class="moz-cite-prefix">On 6/2/2025 5:33 PM, Bryon
Dunkley-Smith wrote:<br>
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<blockquote type="cite" cite="mid:001301dbd41f$10e688a0$32b399e0$@bigpond.com">
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<p class="MsoNormal"><span lang="EN-US">Hi All,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">First time poster and so
I trust this is an appropriate question to ask here.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I have a legacy JavaFX
based application which in part displays a sequence of short
(.MP4) videos which has functioned flawlessly for several
years as demonstrated here <a href="https://www.youtube.com/watch?v=CMv6z_SIUXU" moz-do-not-send="true" class="moz-txt-link-freetext">https://www.youtube.com/watch?v=CMv6z_SIUXU</a>.
But since upgrading the laptop on which it runs from Win10
to Win11 some months ago, there has been intermittent/random
failures of videos playing with a ERROR_MEDIA_INVALID being
thrown. I have tried many code changes to fix this
unsuccessfully however a common “fix” across several
machines is always just running it on a Win10 machine.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I note there is an
unresolved bug report Video sometimes does not start when
reinitializing in Windows 11 <a href="https://bugs.openjdk.org/browse/JDK-8305842" moz-do-not-send="true" class="moz-txt-link-freetext">https://bugs.openjdk.org/browse/JDK-8305842</a>
which appears relevant.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">So I am wondering if
others have encountered this problem and whether there is a
plan to resolve this bug in an upcoming JavaFX release.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Bryon<o:p></o:p></span></p>
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