Hello,
Every time Unity imports a bunch of (more than one) models, it freezes randomly (never on the same one). The models are in .max format and I’m using FBX 2010.
Unity also throws these errors:
“Repainting while performing asset operations!
UnityEditor.DockArea:OnGUI()
Assert in file: […]/Editor/Mono/ProjectWindow/ProjectWindow.cs at line 438”
If I close the 3dsmax process (the fbx importer) manually, it continues the import to the next model and the model where it froze seems to be fine.
Using 3.2, it was doing it in 3.1 too.
Win Xp 32bit Win 7 64bit
4gb RAM / 6gb RAM
Damn it…I know we badly need timeouts on these imports 
Which max are you using? We have our regression test framework running all the time and we haven’t seen any freezes. Maybe it has something to do with your models. Can you submit a bug with your models attached?
I’m using 3ds max 2010 32bit with latest SP / hotfixes on the xp machine.
And using 3ds max 2010 64bit with latest SP / hotfixes on the win7 64bit machine.
I can’t file a bug report as my development station is not connected to the internet. (It would be a “nice to have” to “export” a bug report and upload the file through your website, maybe I missed where it is)
As for the models… well it never happens on the same one and it happens with pretty much any model (from 3 different 3d artists that set up their scenes/options differently…) Pretty straight forward for most of them; 1 object, couple of meshes, couple of materials.
What I do have that may cause something is an editor script for asset postprocessing that places the material in the root folder of the model being imported and renames it. (more details here about structure and all: http://forum.unity3d.com/threads/76263-Organisation-Project-structure-and-pipeline)
You can just send an email to support@unity3d.com (or/and bugs@unity3d.com) and it will either generate the bug automatically or someone will do it for you (I can’t remember how that works:))