If I launch the Iray batch renderer from iClone, either to render or to save an .MI scene, I always get an Undo Manager error message (see Undo_manager_error.png).

After closing the error message, the process continues.

My question is:

Why do we see this message? It is not useful to the user, as there is nothing he or she can do about it. Also, the Undo manager might as well restart on its own with the user having to click OK.

The main problem is that the renderer is halted until the message is closed. One time I didn't notice it and the renderer just sat there of course, wasting time.