Flatpak kdenlive broken under Centos 7 / GNOME

[amtrakuk]

Just to let you know kdenlive is the latest candidate on the growing list of apps breaking bit by bit under CentOS 7.

Installed & updated CentOS, rebooted
Downloaded the appimage file and made executable (chmod +x)
Tried running from command prompt results in;

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[ajh@UNKNOWN Downloads]$ ./kdenlive-19.08.3b-x86_64.appimage 
kdenlive: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by kdenlive)
kdenlive: /lib64/libstdc++.so.6: version `CXXABI_1.3.9' not found (required by kdenlive)
[ajh@UNKNOWN Downloads]$ 

First - Openshot advised to use the appimage version
Skype - advised to use flatpak version
Adobe - Flash plugin disappeared dispute the same plugin file working on other flavors, finger pointing as well as the sprinkling of "Flash is dead"
Now - Kdenlive has stopped working.

[bonedome]

Have you tried the flatpak version https://flathub.org/apps/details/org.kde.kdenlive
You can install a working version of adobe flash plugin from the epel-multimedia repo

[amtrakuk]

As per the title, Its the flatpak version of Kdenlive thats stopped working.

I've always installed flash as per

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https://wiki.centos.org/TipsAndTricks/MultimediaOnCentOS7

[bonedome]

Have you tried

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flatpak update

The adobe flash player (flash-player-ppapi-32.0.0.303-release.x86_64) seems to have stopped working on firefox but an older version

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flash-plugin.x86_64                1:32.0.0.270-1.el7         epel-multimedia

works

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yum install --enablerepo=epel-multimedia flash-plugin