Preview Window Keeps Crashing

[Kuzon]

It don't matter what i do preview window crashes at random times. Enabling or disabling a filter will cause the window to show a black screen. seeking through the timeline dose nothing. frame counter stays at 0. Check mark turns to a X when crash happens. closing and re-opening the window may or may not fix it. Enabling and disabling a filter may or may not fix it.(if filter A cause the crash. Unchecking filter A may or may not fix it , Sometimes enabling a different filter while filter A is enabled will fix the problem.) Source input does not matter it happens all the time.

If the explanation is confusing im sorry but thats the best way i can explain whats going on.
If you need anymore info let me know.