Operating system: Windows 7 Professional 64 bit SP1
Graphics card: NVidia GeForce GT 630
Broken: 2.80 Beta 64bit - a1ae04d15a9f (2019-01-29 22:41)
Worked: 2.79 (5bd8ac9 - 2017-09-11 10:43) - not sure about 32/64 bit
Short description of error
Blender crashes (simply dissapears) after some scrolling / zooming in video sequencer. No errors thrown.
Exact steps for others to reproduce the error
Please see attached blend file.
When working in Video mode, inside video sequencer area, Blender (more or less) randomly crashes on operations like scrolling the timeline (with middle mouse button), zoomin in or out in the timeline (with mouse wheel), even when pressing the Home button to zoom out full. It doesn't always happen after a precise amount of steps - sometimes all it takes is a single zoom out, other times you have to zoom in, scroll around a little, zoom out, etc. But, with the attached example, in less than a minute this bug can be reproduced.
Tipically, this bug occurs after i work on video editing for about 15 minutes or so, after i have around 30 strips or more (type doesn't matter, i have mixed audio, video and images). It's not a problem of memory, i have enough. Also, the window doesn't simply dissapears (as in becomes invisible with blender executable still runnning in background); no, the blender.exe is no longer running.
Also, i've taken the archive version of Blender from your website, i did not compile it myself (hence did not modify it).
If you need further informations, feel free to ask :)
Thank you verry much