You may remember this walk scene as the successful conclusion of "Pieces Flying Apart". I was working with it today, changing textures and I did a render. [CTRL_R] Nothing fancy. I got the render, and when I closed it out and went back to the Assembly Room, the work space was blank.

Up where the "Camera 1/Left/Right etc. views are listed. it said 'Rendering Failed'. With the Selection Arrow I could access the view menu. But as soon as I selected my new view and let the mouse button up, it went back to 'Rendering Failed', and the sceen remains blank in all views. [I'm assuming that the actual view changed. 'No way to tell.] I closed the model. When it asked if I wanted to save, I said 'no'[...hoping to restore it to its pristine original condition] Then I re-opened the model. Same thing. Blankness.

I opened and closed twice more. Now it just says "An unknown error has occurred upon opening".

And one more thing: when I tried to correct the feet on my "Porter", I couldn't get rid of the previous IK consraints. So I went to the back-up model [on a Zip disc]. When I tried to open that, it said "A not my type error has occurred'. "Not my type"? These errors are coming in a lot of flavors, but they're enough to cripple you on any project that requires several models being animated and working together over a period of time.

I suspect there's no work-around on these problems. My basic question is: I don't see other people posting questions on these errors. Is it just me that it's happening to? Or is it so common to Carrara that it's not worth commenting on?