Re: [Evolution] Freezing Preview pane

[Milan Crha <mcrha redhat com>]

On Fri, 2022-09-16 at 10:58 -0500, Anonymous Japhering via evolution-
list wrote:
> ** (WebKitWebProcess:141): WARNING **: 10:19:30.227: Error: 9, This
> file contains no playable streams.. Debug output:
> ../gst/isomp4/qtdemux.c(489):
> gst_qtdemux_post_no_playable_stream_error (): /GstPipeline:image-
> decoder-0/GstDecodebin3:decodebin3-
> 0/GstParseBin:parsebin0/GstQTDemux:qtdemux0:
> no known streams found

        Hi,
it looks like there is something with the gstreamer code in the
WebKitGTK, or, possibly better said, the message contains a video/audio
stream, which cannot be played with the gstreamer. As your Evolution
works fine, it can be closed, the problem is surely on the WebKitGTK
side. A backtrace of the corresponding WebKitWebProcess process might
help, but getting a backtrace from a Flatpak application is too
complicated.

A viable option could be to test with the message on a host system
Evolution (some latest version, like 3.44.x/3.46.0, with a new
WebKitGTK), and, if reproducible, provide the message for testing to
the WebKitGTK folks.
        Bye,
        Milan