Crash during editor start

I got the following crash upon editor start in VS. I never had this crash location before.
I include two screenshots and a logfile. The crash appears, in my opinion, before any of my data is processed, at least according to the way the stack looks.
The shared pointer that causes the crash is null. I tried to capture as much data as possible by pointing the mouse on the data. As you can clearly see, the shared pointer is invalid.
the second screenshot is one level above, the code that calls the shared pointer function that crashes

[link text][3]

Maybe I should add that this happened once and then never again

Hello,

As this has only occurred once and you don’t have any way to reproduce the issue, I won’t be able to assist much further. If you continue to have this issue however, please let me know and we can attempt to get a reproduction case. In the meantime, I’ll be marking this as resolved for tracking purposes.

I posted this mostly since I believe that calling this particular functio with a null pointer is something that is a pretty obvious error in the hope that the developers can see something generally wrong there.
I will add comments if it happens again.