Bug list updated. Quite a few bugs have now been fixed and a few have been removed as they were game-side issues rather than actual bugs with the editor.
Bugs fixed:Major- Custom generated LOD is completely broken. In game the LOD tree models do not get removed and LOD meshes incorrectly use overhead projection mapping.
Medium- Editing a scripts properties whilst modifying a phase script in a scene causes a CTD.
Minor- If the selected object in the render window is deleted, then the camera will pan and rotate wildly until another object is selected.
- The topmost texture in the landscape editor window will always display as "NONE" and will cause the default texture to be used when painted. This means that the topmost texture (depending on sorting) is always unavailable to use, as it is always replaced by the default "NONE" texture.
- Column width in the cell view window is reset with every new cell, which can cause issues with name and ID visibility.
- The context menu in the 'Actor Values' dialog (form list) displays the 'Move to topic' option.
On the theme of "is this really a bug?", is this really a bug (from the "Medium" section):
http://www.gamesas.com/topic/1346664-topic-info-scripts-non-unique-names/
Beyond giving us the ability to set a prefix, as they have, I'm not sure what exactly a "fix" would look like. Forcing users to set a prefix, maybe? Longer filenames with a greater chance of being unique, I suppose is another possibility. But what exactly are we asking for, that we don't have with the prefix functionality?
Edit: also:
"The CK often crashes randomly, usually without reason (for example, while being idle or testing mods ingame)."
Was it ever warranted that we would be able to edit mods in the CK while the game was also running?
I've removed the Papyrus prefix bug from the list. You're right; It really doesn't count as a bug.
To answer your other question, in the Bethesda CK tutorial videos Joel Burgess left the Creation Kit running while testing the mod in-game. I doubt he would've done that if it could cause instability and crashes.