OK solved it now!
The image has to have a data size less than 50Kb for the controller to be able to download and process.
Took a bit of messing around and tweaking in GIMP but got it down to 24Kb and now it loads.
Hey guys, I've just discovered a new Instant Messaging, VoIP, etc. protocol named tox.
Since I'm really impressed and it works without problems so far (besides the GUI-clients don't provide all needed functionality yet) I just wanted to announce it and ask what you think about it.
maybe some day a tox-plugin will make it into NodeBB
I'll now compare the differences between the desktop clients I've tested on arch linux: toxic, qTox, uTox (μTox)
toxic: CLI, so it has the greatest nerd-factor but lacks in functionality of video-streaming
qTox and uTox look nearly the same, so here a few differences that matter in functionality, etc.:
+screen-sharing functionality (worked on local testings quite well)
-no support for encrypted profile-files
+multi-profile (profile-export, etc.)
+webcam-filter (hue, brightness, resolution, etc.)
-qt5-dependencies :*( (wait, why does
:*map to the tongue emoji, I'll need to check this...)
So I clearly recommend qTox, the only important lack is screen-sharing but one of the devs told me it's planned...
If you have further questions you may use the #tox IRC-channel on freenode