About the first error, looks like it could be coming form C++ side code (usually the hard application crashes are caused by TsReader / Directshow helper). So most likely not related to 4TR, but please try to see if you can reproduce it without the 4TR installed.
Also, try to figure out how you actually can reproduce the issue in such way that someone else is able to reproduce it (and hopefully pin point the broken code).
Also, try to figure out how you actually can reproduce the issue in such way that someone else is able to reproduce it (and hopefully pin point the broken code).