Paraview has been fully migrated to QtWebEngine starting with version 5.6.0 (see link above). The corresponding ebuilds should thus depend on dev-qt/qtwebengine[widgets] rather than dev-qt/qtwebkit:5.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=4cc7a3ab1628b015c16603bc0f0ffc975b0e2e10 commit 4cc7a3ab1628b015c16603bc0f0ffc975b0e2e10 Author: Matthias Maier <tamiko@gentoo.org> AuthorDate: 2019-08-04 20:57:19 +0000 Commit: Matthias Maier <tamiko@gentoo.org> CommitDate: 2019-08-04 20:57:19 +0000 sci-visualization/paraview: fix dependency Closes: https://bugs.gentoo.org/689232 Package-Manager: Portage-2.3.70, Repoman-2.3.16 Signed-off-by: Matthias Maier <tamiko@gentoo.org> sci-visualization/paraview/paraview-5.6.0-r1.ebuild | 2 +- sci-visualization/paraview/paraview-5.6.1.ebuild | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)