This bug was fixed in the package pyqt5 - 5.10.1+dfsg-1ubuntu2
--------------- pyqt5 (5.10.1+dfsg-1ubuntu2) bionic; urgency=medium
* Backport three upstream commits to fix crashes when running Cura (LP: #1766092).
-- Dmitry Shachnev <email address hidden> Mon, 23 Apr 2018 14:17:14 +0300
This bug was fixed in the package pyqt5 - 5.10.1+ dfsg-1ubuntu2
--------------- dfsg-1ubuntu2) bionic; urgency=medium
pyqt5 (5.10.1+
* Backport three upstream commits to fix crashes when running Cura
(LP: #1766092).
-- Dmitry Shachnev <email address hidden> Mon, 23 Apr 2018 14:17:14 +0300