Kuno Meyer

@varKeytrap `MessagesFiltered` is of type `ObservableCollection`.

Since I rewrote my code in the mean time, I cannot reproduce the original situation any more. (I remember though to have received a bad image format exception.) But I...

@uvermin: Alternatively, it would be great if you could provide us with the underlying CLR stack trace information (use the _-X:ExceptionDetail_ and _-X:ShowClrExceptions_ interpreter startup flags).

On my machine, I cannot reproduce any exception from [the code mentioned above](https://mail.python.org/pipermail/ironpython-users/2015-April/017442.html), not even when running one million iterations. My changes at #1198 should at least have dealt with...

I was also hit by this. I guess it is bad behavior of a library to setup/configure the global logging setup.

My example script is a stripped-down version of using the [rich](https://pypi.org/project/rich/) package, which seems to be widely adopted and is even referenced by the `pip` module. ```python import rich.status import...