Cura: Crash when opening the Marketplace

[MightyCreak]

Application Version
3.6.0 (reproducible with 3.5.1 and 3.5.0)

Platform
Linux (Fedora 29)

Printer
Anycubic Kossel Linear Plus

Steps to Reproduce
In the menu: Marketplace > Marketplace
(happens all the time; tried 10 times, 10 times it failed)

Actual Results
Crash

Expected results
Show the Marketplace

Additional Information
Here are the lines from the output once I clicked on the menu item (don't know if it helps):

Auto configuration failed
139684462712640:error:0E079065:configuration file routines:DEF_LOAD_BIO:missing equal sign:conf_def.c:362:line 40
QMutex: destroying locked mutex

[nallath]

We've had this reported before, it seems to be an issue with Fedora 29 in combination with SSL. I'm on Fedora 28 and it does work there.

[MightyCreak]

Yeah I wasn't sure, but I thought it was working before (on Fedora 28) as well.

If you're right about SSL, it remembers me the last time I had the same kind of problem with Mercurial: the crypto algorithm used was too old and got removed from the Fedora lib. Maybe it's the same here?

[nallath]

Well, we're using https certificates. I doubt that those are suddenly dropped from Fedora.

[morozsm]

I have exactly the same issue. Any workaround by this time?

[nallath]

Nope, not yet. We haven't been able to figure out a way to resolve this without also breaking other things.

[morozsm]

There is workaround on Ubuntu. Setup OpenSSL1.0.0 compatibility package and dev package. However, it doesn't work with Fedora29.
Curs is distributed via flatpack. Isn't it possible to place appropriate version of LibSSL to flatpack package?

[nallath]

We fixed the issue for the second beta of 4.0.0

[Yannik]

Here is how to fix this for 3.6.0:
sudo dnf install compat-openssl10

Start cura like this:
LD_PRELOAD="/usr/lib64/libssl.so.10 /usr/lib64/libcrypto.so.10" ./Cura-3.6.0.AppImage