[3dprinter-general] Bug#892849: Bug#892849: Bug#892849: cura: Exception while launching cura

[Gregor Riepl]

> ii  libarcus3      3.1.0-1      amd64        message queue for Cura based on p
> ii  python3-arcus  3.1.0-1      amd64        message queue for Cura based on p
> ii  python3-sip    4.19.8+dfsg- amd64        Python 3/C++ bindings generator r

Thank you.

Unfortunately, I cannot reproduce the problem on my machine, even with these
exact versions from sid installed.
But I'm using a sid/stretch mix, not pure sid, so it may be related to that.

On the other hand, I will submit Cura 3.2.1 soon, so perhaps a new build will
help. I'll keep the bug open until then.
If it still happens with 3.2.1, we'll need to debug this further.