Seems not to work in KDE

Seems to run, but when using KDE desktop, get the following message:

flatpak run org.gnome.Evince

(evince:2): GdkPixbuf-WARNING **: 07:59:33.914: Cannot open pixbuf loader module file '/app/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache': No such file or directory

This likely means that your installation is broken. Try running the command gdk-pixbuf-query-loaders > /app/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache to make things work again for the time being.

Seems to work, but get error messages as indicated below:

W@135ms: Url "https://download.fedoraproject.org/pub/alt/releases/26/Labs/x86_64/images/Fedora-Python-Classroom-Vagrant-26-1.5.x86_64.vagrant-libvirt.box" changed to "https://download.fedoraproject.org/pub/alt/releases/26/Labs/x86_64/images/Fedora-Python-Classroom-Vagrant-26-1.5.x86_64.vagrant-virtualbox.box" W@135ms: SHA256 hash of "https://download.fedoraproject.org/pub/alt/releases/26/Labs/x86_64/images/Fedora-Python-Classroom-Vagrant-26-1.5.x86_64.vagrant-virtualbox.box" changed from "6c31f6bc33684dda357715948c3fd043fa1e9849a189843b00977e1ba85abdd1" to "0c5f297a99b1aa560b7eee6242f0b697bed16bf955ff77202af656650de07d06" W@135ms: Url "https://download.fedoraproject.org/pub/alt/releases/26/Labs/x86_64/images/Fedora-Python-Classroom-Vagrant-26-1.5.x86_64.vagrant-virtualbox.box" changed to "https://download.fedoraproject.org/pub/alt/releases/26/Labs/x86_64/iso/Fedora-Python-Classroom-Live-x86_64-26-1.5.iso" W@135ms: SHA256 hash of "https://download.fedoraproject.org/pub/alt/releases/26/Labs/x86_64/iso/Fedora-Python-Classroom-Live-x86_64-26-1.5.iso" changed from "0c5f297a99b1aa560b7eee6242f0b697bed16bf955ff77202af656650de07d06" to "cc31eff029ff4e80f1c1cfb4885f108be7e359fa5179a7b14fdd85291a48fb6a" W@1976ms: qrc:/dialogs/DownloadDialog.qml:421:25: QML Arrow: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/dialogs/DownloadDialog.qml:421) W@1979ms: qrc:/dialogs/DownloadDialog.qml:410:21: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/dialogs/DownloadDialog.qml:410) W@2088ms: qrc:/views/ImageDetails.qml:136:29: QML Text: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:136) W@2093ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115) W@5317ms: qrc:/views/ImageDetails.qml:136:29: QML Text: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:136) W@5317ms: qrc:/views/ImageDetails.qml:136:29: QML Text: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:136) W@5317ms: qrc:/views/ImageDetails.qml:136:29: QML Text: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:136) W@5328ms: Url "https://download.fedoraproject.org/pub/fedora/linux/releases/30/Server/armhfp/images/Fedora-Server-armhfp-30-1.2-sda.raw.xz" changed to "https://download.fedoraproject.org/pub/fedora/linux/releases/30/Server/armhfp/iso/Fedora-Server-netinst-armhfp-30-1.2.iso" W@5346ms: Url "https://download.fedoraproject.org/pub/fedora/linux/releases/29/Workstation/armhfp/images/Fedora-Workstation-armhfp-29-1.2-sda.raw.xz" changed to "https://download.fedoraproject.org/pub/fedora/linux/releases/29/Workstation/armhfp/iso/Fedora-Workstation-netinst-armhfp-29-1.2.iso" W@5351ms: Url "https://download.fedoraproject.org/pub/fedora/linux/releases/29/Server/armhfp/images/Fedora-Server-armhfp-29-1.2-sda.raw.xz" changed to "https://download.fedoraproject.org/pub/fedora/linux/releases/29/Server/armhfp/iso/Fedora-Server-netinst-armhfp-29-1.2.iso" W@17892ms: qrc:/views/ImageDetails.qml:136:29: QML Text: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:136) W@17892ms: qrc:/views/ImageDetails.qml:136:29: QML Text: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:136) W@17892ms: qrc:/views/ImageDetails.qml:136:29: QML Text: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:136) W@48726ms: Writing failed: "Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken." W@48729ms: Couldn't send a notification: "org.freedesktop.DBus.Error.ServiceUnknown" - "org.freedesktop.DBus.Error.ServiceUnknown" W@80733ms: Writing failed: "Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken." W@80737ms: Couldn't send a notification: "org.freedesktop.DBus.Error.ServiceUnknown" - "org.freedesktop.DBus.Error.ServiceUnknown" W@289930ms: Couldn't send a notification: "org.freedesktop.DBus.Error.ServiceUnknown" - "org.freedesktop.DBus.Error.ServiceUnknown" W@352986ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115) W@352987ms: qrc:/views/ImageDetails.qml:136:29: QML Text: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:136) W@352987ms: qrc:/views/ImageDetails.qml:136:29: QML Text: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:136) W@352989ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115) W@352990ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115) W@352990ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115) W@352995ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115) W@352996ms: qrc:/views/ImageDetails.qml:136:29: QML Text: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:136) W@352997ms: qrc:/views/ImageDetails.qml:136:29: QML Text: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:136) W@352998ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115) W@352999ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115) W@352999ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115) W@353040ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115) W@353040ms: qrc:/views/ImageDetails.qml:136:29: QML Text: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:136) W@353040ms: qrc:/views/ImageDetails.qml:136:29: QML Text: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:136) W@353041ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115) W@353041ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115) W@353041ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115) W@353041ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115) W@353041ms: qrc:/views/ImageDetails.qml:136:29: QML Text: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:136) W@353041ms: qrc:/views/ImageDetails.qml:136:29: QML Text: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:136) W@353041ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115) W@353041ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115) W@353041ms: qrc:/views/ImageDetails.qml:115:17: QML RowLayout: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead. (qrc:/views/ImageDetails.qml:115)

Seems to work.

Seems to generally work.

Seems to work.