I think this is what you're looking for. I upgraded to 21.04 and had the same issue.
``` MarkInstall qt5-default:amd64 < 5.14.2+dfsg-6 @ii mK Ib > FU=0 Installing qtbase5-gles-dev:amd64 as Depends of qt5-default:amd64 MarkKeep qtbase5-dev:amd64 < 5.14.2+dfsg-6 -> 5.15.2+dfsg-5 @ii umU > FU=0 Delayed Removing: qtbase5-dev:amd64 as upgrade is not an option for qtbase5-gles-dev:amd64 (5.15.2+dfsg-3) MarkInstall qtbase5-gles-dev:amd64 < none -> 5.15.2+dfsg-3 @un uN Ib > FU=0 Installing libqt5gui5-gles:amd64 as Depends of qtbase5-gles-dev:amd64 MarkKeep libqt5gui5:amd64 < 5.14.2+dfsg-6 -> 5.15.2+dfsg-5 @ii umU > FU=0 Delayed Removing: libqt5gui5:amd64 as upgrade is not an option for libqt5gui5-gles:amd64 (5.15.2+dfsg-3) MarkInstall libqt5gui5-gles:amd64 < none -> 5.15.2+dfsg-3 @un uN Ib > FU=0 MarkDelete libqt5gui5:amd64 < 5.14.2+dfsg-6 | 5.15.2+dfsg-5 @ii umH Ib > FU=0 MarkDelete qtbase5-dev:amd64 < 5.14.2+dfsg-6 | 5.15.2+dfsg-5 @ii umH Ib > FU=0 ``` ** Attachment added: "apt.log" https://bugs.launchpad.net/ubuntu/+source/qtdeclarative-opensource-src/+bug/1920130/+attachment/5496778/+files/apt.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1920130 Title: System icons missing in kubuntu 21.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qtdeclarative-opensource-src/+bug/1920130/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs