Bug Collaborate pop-up only display loading... or black screen - 5.5xf3

Code (CSharp):

1. Launched and connected shader compiler UnityShaderCompiler after 0,01 seconds
2. [1201/151704:ERROR:browser_main_loop.cc(207)] GLib-GObject: invalid cast from 'GtkDrawingArea' to 'GtkDialog'
3. [1201/151704:ERROR:browser_main_loop.cc(207)] Gtk: IA__gtk_dialog_get_content_area: assertion 'GTK_IS_DIALOG (dialog)' failed
4. Issue TrimJob to reduce GI Cache size to maximum 10GB at: '/home/amarok/.cache/unity3d/GiCache'
5. [00:00:00] Enlighten: Precompute started.
6. TrimDiskCacheJob: Current cache size 0mb
7. [00:00:00] Enlighten: Finished 1 Layout Systems job (0,00s execute, 0,00s integrate, 0,28s wallclock)
8. [00:00:01] Enlighten: Finished 1 Tetrahedralize Probes job (0,00s execute, 0,00s integrate, 0,30s wallclock)
9. [00:00:01] Enlighten: Precompute took 0,580707 seconds.
10. Enlighten scene contents:   0 geometries.   0 instances.   0 systems.   0 probe groups.   0 cube maps. Scene is up-to-date.
11. Setting up 2 worker threads for Enlighten.
12.   Thread -> id: 7fc32a1b9700 -> priority: 1
13.   Thread -> id: 7fc32960c700 -> priority: 1
14. UPID Received '53581662-f70a-45b1-8cc8-207036373f35'.
15. Refresh: detecting if any assets need to be imported or removed ... Refresh: elapses 0,031721 seconds
16. Refreshing native plugins compatible for Editor in 0,19 ms, found 0 plugins.
17. Preloading 0 native plugins for Editor in 0,00 ms.
18.  
19. ----- Total AssetImport time: 0,032968s, AssetImport time: 0,000000s, Asset hashing: 0,000000s [0 B, 0,000000 mb/s]
20.  
21. [00:00:04] Enlighten: Bake started.
22. [00:00:04] Enlighten: Finished 1 Bake Runtime job (0,17s execute, 0,00s integrate, 0,21s wallclock)
23. [00:00:04] Enlighten: Bake took 0,215115 seconds.
24. [00:00:04] Enlighten: Reflection Probes started.
25. [00:00:05] Enlighten: Finished 1 Ambient Probes job (0,00s execute, 0,00s integrate, 0,06s wallclock)
26. Starting cubemap convolution for '' (size 128)
27. [1201/151709:ERROR:nss_ocsp.cc(617)] No URLRequestContext for NSS HTTP handler. host: ocsp.digicert.com
28. [1201/151709:ERROR:nss_ocsp.cc(617)] No URLRequestContext for NSS HTTP handler. host: ocsp.digicert.com
29. [1201/151709:ERROR:nss_ocsp.cc(617)] No URLRequestContext for NSS HTTP handler. host: crl4.digicert.com
30. [1201/151709:ERROR:nss_ocsp.cc(617)] No URLRequestContext for NSS HTTP handler. host: ocsp.digicert.com
31. [1201/151709:ERROR:nss_ocsp.cc(617)] No URLRequestContext for NSS HTTP handler. host: ocsp.digicert.com
32. [1201/151709:ERROR:nss_ocsp.cc(617)] No URLRequestContext for NSS HTTP handler. host: crl4.digicert.com
33. ...took 0,170 seconds
34. [00:00:05] Enlighten: Finished 1 Reflection Probes job (0,43s execute, 0,00s integrate, 0,74s wallclock)
35. [1201/151711:ERROR:browser_main_loop.cc(207)] GLib-GObject: invalid cast from 'GtkDrawingArea' to 'GtkDialog'
36. [1201/151711:ERROR:browser_main_loop.cc(207)] Gtk: IA__gtk_dialog_get_content_area: assertion 'GTK_IS_DIALOG (dialog)' failed
37. [1201/151711:ERROR:nss_util.cc(93)] Failed to create /home/amarok/.pki/nssdb directory.
38. [1201/151711:ERROR:nss_util.cc(211)] Error initializing NSS without a persistent database: NSS error code: -8023
39. [1201/151711:FATAL:nss_util.cc(213)] nss_error=-8023, os_error=0

In 5.4.3 it working perfectly, using Ubuntu 16.10.

 

Confirmed, will be fixed in the next build. As a workaround for the "black screen" issue there or in the history window, you may be able to downgrade your libnss to 3.23 or earlier.

 

Thanks, downloading: http://packages.ubuntu.com/xenial-updates/amd64/libnss3/download