I encountered this problem now on multiple sessions of mine.
Basically Nuendo 8.1 crashes consistently when using Export Audio or the Render in Place functions.
The weird thing is it works great (without any crash) when starting a new project, but at some point something seems to trigger the bug and then it is always happening. Also saving a Backup of the Project with Consolidate Offline Processing etc. active does not fix it, the new backup project still keeps the issue.
Anyone else that is experienced something like this? Does someone have an idea for a solution?
Also weirdly enough once the Session has the issue, opening it and doing the first export action seems to work fine but afterwards it always crashes directly on a second try.