I find out that the latest Qt 5 update in Fedora 27 (5.9.2) breaks Cura,
one of the 3D printing apps.
I've reported the problem [0] (it contains more links).
However, I have no idea how to debug this or fix it, so if anyone here
is a Qt mastermind, please help.
[0] https://bugzilla.redhat.com/show_bug.cgi?id=1507859
Thank you,
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Miro Hrončok
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Phone: +420777974800
IRC: mhroncok