Atlas Editor crashing aggressively when loading custom .dae models (but works perfectly fine in-game)

[Jackerino]

I'm not entirely sure how to post bug reports on the Git but I tried anyway, but I'm posting here as well in the hopes of it being seen sooner.

I've downloaded the latest build from https://play0ad.com/ for Windows; I did not use the SVN, and one thing to bring up is I'm missing the Actor Editor.  It's okay, though, as I can still develop the game without it (but would love to still have it.)  From there, my .dae files for custom structures (NOT Infantry) specifically is causing crashes in the Atlas Editor.  All except for one; the Barracks model.  I will include two .dae's below, and what will happen is, one will cause the Atlas Editor to crash, and one won't.  I will also include the crashlog.  I'm using the latest version of Blender as provided by Steam as well to make these .dae models.

Specifically, the blacksmith one will be the one that causes a crash, and the barracks one won't.

Interestingly, none of my custom infantry has caused the map editor to crash; it's only been structures.  As a result, I've been testing my art in-game by doing consecutive skirmish matches over and over and over, and making saves/loads/etc.; while taking screenshots of my units in the Atlas Editor for previews and thumbnails.  It would be nice to be able to use the Map Editor to make scenarios with my custom civilization, but this is actively preventing me from doing so.  Any help or insight would be greatly appreciated!

avian_barracks.dae avian_blacksmith.dae logs.zip