When I get error E1201 Nexus to small, I see only an Ok button (not a Cancel button like with other errors). When I click on it, the screen stays black and after a while Microsoft Error apears 'Acknex.exe has encountered a problem etc.' I don't think this is the right way to correct this error.
I have to 'restart' WED and/or SED to get rid of the Microsoft errorpanel.
Any comment?

When you get the nexus too small error you should get this:


And after clicking okey you get this;


After this last message I get a small pause and after that the engine will shut down correctly. Not windows error messages here,

Cheers

Well, there it goes wrong. There is no panel with Error E1 showing when this happens. I have never seen that.
I don't know what's going wrong here, do you?

This just depends on in which situation the "nexus to small" error happens. There are situations where lack of memory can indeed lead to an engine crash. But WED can not crash by this, and SED crashes only when this error happens during a debug session, but not when you run it normally.

This is obviously not a bug.

It anyway won't happen with the current engine, so I consider this case closed. Just update to the latest version.

I just updated to the latest version. Now the the panel with Error E1 is visible and the 'nexus to small error' is corrected in the proper way, thanks for the info.

Edit; the problem still occurs when I am running the level in WED and there is suddenly not enough memory available.
When I set the nexus too low and then try to run the level then I get the two panels and I the macine does not crash.