Yeah +1 to @Justo. Also you might want to run Blender from the command prompt. That way you can still see any messages and then try to reproduce the crash.
@Chev You have to put the armature and mesh in a collection in the library. The armature has to also be the parent of the mesh. When linking, link the collection, then run the library override operator on the linked collection.
@Fuiosg : Another way to get what you want would be to start by selecting the whole series of parallel edges then run "Checker Deselect". And then select loops from there. http://i.imgur.com/F6B53KC.gifv
I have no idea actually. I've never run into NGons breaking topology on save. Could it be that you're saving with "Legacy Format" enabled? Such that the NGons are being excluded. In what nature did they "break"?
I was under the impression Blender gave you the option to migrate your settings when you update? When you run the new version, check if there's a 'load previous settings' option on the splash screen somewhere.
@ant1fact You can select one of the seam edges then use Select > Select Similar > Seam. To do the same in a (ugly) Python one-liner, assuming the mesh is in Edit mode: (Run with the Python Console view.)
I'd try making the Blender window a QWindow and use it as a parent, something like this: - https://stackoverflow.com/questions/41474647/run-a-foreign-exe-inside-a-python-gui-pyqt - https://doc.qt.io/qt-5/qwindow.html#fromWinId
@pior ah yeah that might not work, I only tested it running from the text editor in blender so I'm not surprised the install doesn't work ;) would be pretty easy to fix tho. but it seems you have a solution anyways.
Thank you for the news. Noice! When you install a version of Blender that's never been on your computer you get a "Copy Preferences" option on the splash screen, when you run it. You can then click that to keep using your previous user preferences (hotkeys, custom addons etc.) http://blender.stackexchange.com/a/1920/29992…
@Ruz try to run the "Denoising Depth" pass through a "Map Range" Node in the Compositor, I bet you will get much better result. No need to adjust the samples and bounces this way and you can easily adjust the range inside the compositor.